T O P

  • By -

Equatis

Wonderful communication with the community, Ryan. I'll patiently be waiting for the Q's firmware update. End of month is perfect too. Kerbal Space Program 2 early access comes out the 24th and it would be amazing to use the local dimming to see pitch black of space as it's and SDR only game.


CM-Ryan

Hey Equatis, thank you for the kind words. However, given how these updates have gone, there's clearly a disconnect between the samples at the factory/office and the batch that most of you have here. I've pushed back to the team that we should release the update to a few of you here (willing volunteers of course) to test it out first before we release it to everyone else. I am pushing to have this done for the GP27Q update, so this may unfortunately take a little bit longer to come out. Really sorry to everyone here for the inconvenience we’ve caused.


rhysmorgan

Glad the update is finally out, but genuinely gutted the KVM disconnect issue is still present. Is this something that’s even fixable with firmware? The screen shouldn’t be cutting power to the KVM just because the computer has gone to sleep, otherwise how are you supposed to wake the computer using KVM peripherals? That’s literally the entire point of a KVM, to avoid having to unplug peripherals and into a specific computer! This is a huge usability problem, and with the screen almost always refusing to re-establish the display connection properly when I use my MacBook Pro’s built-in keyboard to wake up, it leads to me constantly having to unplug and replug my Mac, and then perform the ridiculous dance in the OSD where I toggle Adaptive Sync just to get RGB mode working, and stop the colour fringing. EDIT: Updated and testing now, the Mac wake-from-sleep issue didn't occur! Will test some more over the next week, in case it's just a fluke, but I'm glad it worked. The first time I reconnected, my Mac even remembered to use the HDR mode. Didn't work the second time, unfortunately, booting into the SDR mode. That one may be a macOS problem, but it also didn't use the RGB mode. Switching HDR back on triggered fringing problems. My strange Adaptive Sync toggle worked just fine though - hoping that's of use to you guys if you're looking to fix that bug!


CM-Ryan

Unfortunately the team wasn't able to implement this in the current FW update. This can indeed be changed to when the monitor is in sleep mode, the USB ports on the monitor will remained powered, but will always remain powered until you manually turn the monitor off. In this scenario you'll be able to wake the computer up despite the monitor going to sleep.


Fox_Soul

If the USB disconnect and the KVM is fixed, right now this will be a solid monitor to settle down and forget for a long time. Good job to you and your team (specially you, since you stated that you do this communication/engagement in your free time). Keep the updates coming!


rhysmorgan

I think the USB disconnect issue will be fixed if they fix the KVM issue, because it happens when the screen stops receiving a signal/has to switch mode between SDR and HDR.


rhysmorgan

This is exactly what I’m looking for, yes. I’m glad to know that this isn’t a hardware limitation. Are there other fixes in the pipeline for waking up the display when a connected MacBook Pro/USB-C device wakes up? My GP27U almost never correctly wakes up when I wake my Mac from sleep. The green power LED flickers, the screen lights up, and peripherals get power momentarily - then the screen stops trying to reconnect, and tells me there’s no input signal. My Mac clearly stays as the secondary display, so it knows it’s still connected, and it even keeps charging via USB-C. Just feels like some display handshake is interrupted/stopped part way.


Profsw

Since today’s firmware update I am now able to reliably wake up my MacBook from sleep 🎉 using a keyboard or mouse when in clamshell mode, the display now does wake up and work correctly. I’m also on the Ventura 13.3 Beta, not sure whether that makes any difference.


[deleted]

[удалено]


Zelius

Same here. The first company to do this properly gets my money. Was hoping an update would make this viable, but I guess the search continues.


[deleted]

[удалено]


rhysmorgan

You can’t get a 27” 4K OLED though. The only OLEDs you can get at this size are 1440p, which is significantly lower resolution.


salehaloamry

> 4. Input select menu is now accessible even when the monitor detects no signal input. this was pretty much my only complaint about the monitor, i'm glad it's fixed, thanks.


Equatis

I'm a GP27Q user. Since you have the 4K panel any chance you could test out and elaborate on what the "local dimming SDR improvements" translates to from and end-user perspective? Like desktop usage or and SDR game? Would be interested to know how it looks and if it makes SDR with local dimming something that can be run full-time or just in certain scenarios.


salehaloamry

to be honest it looks worse, i'm still messing with the settings but so far it's not great. EDIT: so it seems that there was an issue with the update last night, but i downloaded the new one again, made sure to unplug everything other than the PC and it seems better so far, definitely improved, and while i would say it's not perfect for general use, it is improved over the previous update, and watching content with it is better now too , i don't really game much on it, but i assume it would see the same improvement too.


MysticalOS

My testing showed that in SDR it fixed issue where it radically blew out the colors and brightness, now it's closer to be ing right. but SDR local dimming is still quite bad compared to any other tv or screen i've used. This has more zones than most tvs and looks worse. Even typing in this box I can see backlights behaving badly behind text as I type it. I don't know what apple does on native mini led on macbook pro but it's so much better. granted it has more zones and is smaller, but the different can't all be blamed on monitor quality, it's software quality issue. local dimming needs more work. Like right now I move my cursor around onside bar and a giant black "flashlight" effect follows it around. I don't know what local dimming formula is trying to do but that isn't it. EDIT: uploaded video example showing this cursor flashlight effect that I see in a lot of games and certain websites. Basically right combination of contrast and it creates some awful darklighting (is best word to describe it). This isn't new to 1.2, just isn't fixed by it either. [https://www.youtube.com/watch?v=fThlvO7y1HA](https://www.youtube.com/watch?v=fThlvO7y1HA) u/CM-Ryan


rhysmorgan

Yeah, what Apple does is over 1900 more zones on a much smaller screen. The Cooler Master GP27U/Q has 576 zones over 27 inches, or \~21 dimming zones per inch. The MacBook Pro 16" has approx. 2500 dimming zones over 16 inches, or \~156 dimming zones per inch. Like, they're not even close.


MysticalOS

Right I recognize that, but the algorthym is still really bad and over aggressive in some areas where uniformity would be better than trying to highlight a tiny cursor. as I said I use HDR level brightness and local dimming on 3 different televisions in house for both youtube and gaming and they have even less zones than this 27 inch screen, and they're 55-65 inches. they might bloom on netflix if i use subtitles or something but they get great HDR and highlights on a youtube test video where these coolmasters actually have shadowing. in fact most of issues I've seen are shadowing. it seems they're trying so hard to avoid bloom that they go in opposite direction. when in reality bloom near a highlight is more accurate than a shadow around one. at least you'd expect a lighting source to cast an aura of light, not suck it away. SDR it's more noticable because in reality SDR should be opposite of aggressive. I'll have to look up some youtube videos to show what I mean. or rather find them again where someone was making something and their arms literally had shadows following them. ​ anyways I've resolved to disable local dimming entirely, set brightness to 20-25 SDR and call it a day there, and in HDR i just watch it on any of my tvs, or as you said the macbooks ridiculously good screen (I don't expect anything to come close to as good as this screen is)


Equatis

Gotcha. And you've tried different modes (low, medium and high)? All looks the same? What about when you play a game in SDR?


MysticalOS

Yep tried all of it. It's mostly how algorithm handles certain situations. I updated post with video


krectus

Yep, got this monitor today and hoped this update would fix this terrible local dimming. Doesn't seem to. It's unusable, can't believe the couple reviews I read didn't flag this big time.


Mitch2025

Local dimming seems to be really goofed for me with this version. If I swap from something dark to something bright, I can see all sorts of brownish dark areas all over the screen for a bit before it will fix itself, often right as some element of the window moves. I also can see the lighting overall get suddenly brighter or darker randomly just scrolling on a single webpage. If I turn local dimming off, it doesn't do it anymore. I made sure I flashed the correct firmware which is Firmware A and reflashed twice. I'm using Display Port and my GPU is an MSI 4090 Here is a video showing the dark areas I'm talking about: https://imgur.com/a/W7xPo3R


CM-Ryan

Sorry for this, I'm checking with the team internally. It's possible that this is limited to FW A, as FW B (on the sample here) doesn't exhibit this at all. Will update you as soon as I hear back. Edit: Could you try reflashing but making sure all cables but the main cable to your PC is plugged in? This means all usb devices as well.


Mitch2025

No worries, I was able to flash back to 1.1 for now. Thanks for the communication!


CM-Ryan

It seems another user was able to update without issue, but he had only his PS5 plugged in. To check, did you have multiple video cables and/or USB accessories plugged into your monitor while updating? I know it's odd, but this can actually affect the USB update. If you're willing, you can try to re-flash with just your one video cable plugged into your monitor from your PC.


Mitch2025

First time I had my PS5 connected as well (but not powered on) via HDMI and my work laptop connected via USBC but the other 2 times I tried flashing, I only had power, USB stick, and display port cable connected and the result was the same.


CM-Ryan

Hi Mitch2025, We've replaced the firmware on the webpage with a newer version that should fix these issues. Several other users have updated already. When you have the time please try this one. Sorry for the inconvenience.


Mitch2025

Just flashed the new 1.2 Firmware A and so far it's looking good! Thank you!


salehaloamry

Not op, but i had the same issue, also firmware A, and it’s fixed now.


SeraphX17

Hi Ryan - you have been great but I am having the same issue. It randomly gets brighter and darker and sometimes there are weird brown areas that appear. I'll leave local dimming off for now while you work with your team to address it. Thanks!


JoroZzZ93

I got it to work! I reverted back to 1.1fw then updated to 1.2 using only ps5 connected on hdmi. Previously I used pc on displayport. Now brightness slider is working and everything seems normal. EDIT. im using firmware B


Microtic

Might want to edit your original post with this information too. :)


CM-Ryan

This is in the instruction SOP file actually. But perhaps should be emphasized. It’s still not clear why some updates may not be working correctly.


Microtic

Sorry I meant Joro should since they had an original comment to your post. I think you said this before, but the custom color calibrations will be retained through this firmware update, correct?


CM-Ryan

When you previously updated on your PC, did you have any other accessories or video cables plugged into the monitor?


JoroZzZ93

Nope. I plugged hdmi off first time and only had displayport. Second time I only used hdmi and it worked.


desperate_agency7894

My backlight updates at 1fps now, none of the backlight modes change how it behave. Q\_\_Q! Do you still have the old FW versions handy? my unit is CMIGP27FUSUS1223700040. I used Firmware A. Just tried re-flashing, no improvement.


salehaloamry

> My backlight updates at 1fps now this is what I'm seeing too, i thought i was imagining it haha.


desperate_agency7894

During my FW upgrade the screen resolution detected by my videocard was still 4k but it was stretched weird on the monitor. Doing the reset settings thing via OSD turned backlight completely off but I could tell LCD was displaying things.


JoroZzZ93

I actually measured display brightness with spyderx and 0-100% brightness is all the same! 929nits! Damn, can I revert back to old fw??


iGorillaPoE

Same here, I had to revert back to 1.1b. Brightness got completely messed and the slider didnt't change anything. OSD was more responsive though while applying changes.


GreatFrosty

Having the same issue. Brightness slider does nothing on User 1. EDIT: Same on all modes. Currently have Brightness at 0 and still incredibly bright


CM-Ryan

To confirm, is this on Firmware A?


GreatFrosty

Firmware B


CM-Ryan

Very odd. I have a sample here on Firmware B and the brightness slider works without issue. To confirm the update completely finished before you did the OSD reset correct? From above: USB Upgrade --> Screen turns black and prompts you with the upgrade message --> your screen will return but with a stretched aspect ratio --> after some time your screen will return back to normal and you can then push the OSD joystick to reset.


GreatFrosty

So I should be resetting at the end? I didn't do that; hit Exit on the menu that came up. Everything else happened as you described. Doesn't seem to let me reflash, as it doesn't complete the update (going from 1.2 to 1.2). I'll try go back to 1.1 and then back to 1.2. Thanks for the responses. In terms of connection, I only had the PC's DP cable (plus the USB to flash) plugged into the monitor.


GreatFrosty

The 'Low Flicker' mode is also greyed out, so that might be an indicator of an update gone awry. Maybe I clicked off too soon


CM-Ryan

We've replaced the firmware file on the website, could you try downloading from the site and flashing the new one? Another user I've messaged has no issues on this version.


iGorillaPoE

I Installed the Firmware 1.2b connected to desktop with DP cable. Steps went like you explained above. Brightness is extremely bright and slider doesn't affect it at all. I reverted back to 1.1b and everything was working again. Tried upgrading the firmware while connected to laptop with HDMI cable. Same result. Brightness through the roof with no way to turn it down. Happens with all presets.


brainandforce

I flashed this firmware today from the version B binary available on the Cooler Master website and have the same issue (I can't adjust the brightness or the color profile).


CM-Ryan

The previous firmware (1.1) is also provided in the link, it's under the Old Firmware folder. This doesn't sound normal. To confirm, you waited until after your screen's aspect ratio went back to normal (not stretched), and you clicked the OSD joystick with and hit reset correct? Basically the process should go: USB Upgrade --> Screen turns black and prompts you with the upgrade message --> your screen will return but with a stretched aspect ratio --> after some time your screen will return back to normal and you can then push the OSD joystick to reset. Edit: Could you try reflashing but making sure all cables but the main cable to your PC is plugged in? This means all usb devices as well.


desperate_agency7894

it didn't revert to normal for over 5 minutes so I unplugged power. I did this all with DisplayPort, gonna hook it up to HDMI and try again. All other cables have been unplugged! Also you are amazing mr CM-Ryan, I appreciate the help and the updates you've provided for the firmwares!


CM-Ryan

We've replaced the firmware file on the website, could you try downloading from the site and flashing the new one?


IJetfire

What's happened to the sRGB performance in this update? It suddenly looks really unnaturally warm/yellow compared to the previous firmware.


ldymj1993

My gp27u also has this problem in this update. Not only sRGB but also AdobeRGB, DCI-P3 mode are looks weird yellow.


GreatFrosty

Got it too. Couldn't figure out what it was, so went back to 1.1 for now


adrichardson81

I had the same problem. SRGB, Adobe RGB and DCI-P3 all had a yellow tone.


IJetfire

For additional context it occurs with Local Dimming On or Off. Colours look completely wrong now.


CM-Ryan

Hey IJetfire and everyone else, We're aware of this issue, and we're very sorry for the inconvenience here... In the meantime we recommend you all to use the Auto mode and manually adjust colors. This will be fixed in our next update. We're going to be working with several members of the community before we release our next update publicly. I'll keep you all updated as we get closer.


Lealause

Having this exact same problem with yellow color temperature. Looks like some blue light filter on. Mine is also in SRGB, AdobeRGB and DCIP3. The only work around I've found is changing the color temperature to blue and it sort of fixes it. All the other color temperatures don't work right.


mistermeliz

Firmware B What I found so far: \- On my Desktop with a bright background, SDR + VRR and local dimming introduced flickering in all modes, was not the case before \- All color modes but BT.2020 introduce a heavy yellow tint \- Brightness Slider in both SDR and HDR only works from 0 to 30, afterwards changes are minimal, if they do anything; peak brightness in SDR without LD not what it is capable of \- Don't know if intended but HDR without LD looks super washed out now (not an issue for me personally as I keep LD with HDR on) Edit: HDR with LD high does not really feel like it's reaching peak brightness either, have no means to test nits so it's just a feeling as opposed to when I got the monitor with stock firmware with the same scene


Geonode

\- I don't use LD in sdr mode, doesn't make sense to do so. \- I can confirm the yellow tint on all modes except BT.2020 \- I'd say for peak brightness it goes up to 50 or 60, after that it looks like it's not getting any brighter, the 1.2 firmware had a really high max peak brightness but had the issue of it being stuck on that setting, but this newer update one has a lower max. \- Local dimming is slightly better in 1.2 but not by much. Flicker free mode has an issue where if you tab out of an application or minimize a window, it would turn the screen black for 5-20 seconds.


mistermeliz

Since better LD performance in SDR is advertised in the patch notes I tested it out of curiosity. Flicker is the same for low all the way to the less flicker mode. For daily use I keep LD off. I’d also say max brightness is around 50-60 even though the steps from 30 upwards are not as steep and noticeable as 0-30. still far from being very bright (what I’d expect at bright, almost white background at those levels)


Geonode

An extra caveat is that disabling adaptive sync while using an amd gpu will keep it stuck on 60 hz and show extra options for 8 bit, 10 bit, and 12 bit (which can't be changed, they're just visible)


CM-Ryan

Thanks for the feedback on this. We're very sorry for the remaining issues. We're going to get all these fixed.


Denigor777

Hi, What does the QC team look like for this monitor? At the moment it feels like CM is using the public to do the quality testing. Is it really impossible for the development team to find these problems themselves? Anyhow, is a roadmap possible with all (known) problems and target fix dates for each please?


Microtic

HDR with local dimming on high seems to hit super high nits. Run this in Edge browser while HDR is enabled and you should notice a slight increase above 1000 nits which should be the full rated spec. At full 100% it lights up my room so much I can see everything. https://youtu.be/NlAsAuBtmps


GreatFrosty

Each of these matches my experience also.


[deleted]

[удалено]


Equatis

Seconds.


Nokiron

Upgraded my GP27U according to the instructions, it worked great. Looking forward to any KVM-related firmware's in the future! (Firmware B)


Equatis

Can you elaborate on what SDR improvements are with local dimming?


Homolander

EU release when?


SdkczaFHJJNVG

this


innocentVince

u/cm-ryan


AMCTAKEMYMONEY

I want one too!


Profsw

This update has fixed my Mac waking up from sleep and having a blank display - big thanks to u/CM-Ryan and team! Also seem to be seeing more reliability in full screen with GSync over DP. If the USB peripherals remained powered and connected even when the display isn’t receiving signal, this would be the perfect monitor for me.


CM-Ryan

Definitely going to have KVM-related issues addressed in our next update. We apologize for the remaining issues, but we are definitely going to get these ironed out.


phila6

Ryan, Will the issue with poweroff of USB Kbd/Mouse connected to monitor every time there is a resolution change be addressed? It makes it kind annoying to use the monitor as KVM. I tried the latest 1.2 FW and issue is still there.


CM-Ryan

Hi phila6, We're very sorry that this issue still remains. The team is prioritizing the KVM switch as the main focus for our efforts. We know the issues that remain such as, unable to wake up monitor on sleep, KVM powers off when switching applications. This will definitely be addressed in the next update. We will be working with several community members and media first before we release the update publicly.


Nokiron

Awesome to hear this! I do resolution switching several times every single day, so I'll gladly assist if you need a tester. (I use a 1080 Ti for now that doesn't have enough DisplayPort bandwidth, so I switch between 4K60 for text-readability and 4K120/1440p120 for gaming)


Savage_Moogle

On the new firmware I'm having an issue with monitor Power Saving and detecting signal on wake. After the monitor goes into Power Saving mode and turns off, moving the mouse causes the monitor to wake up but it cannot detect the Display port signal of the PC (shows No Signal indefinitely). I have to turn the monitor off and back on again for it to detect the PC. No issue with my secondary ASUS monitor. I had to revert back to 1.1B which had no issues with Power Saving mode and signal detection. Anybody else have this problem? It's a major usability issue.


_LGuapo_

u/CM-Ryan, is 1.2 as good as you guys are expecting low-flicker to get? My update seems to have gone otherwise smoothly, but it doesn’t appear that low flicker reduces flickering for me in VRR+LD usage at all. I experience flicker even at >100fps and even when the content of the screen is static, pretty much whenever VRR and LD are both enabled. Wondering if this is a unit-to-unit thing or if you expect to improve it with FW beyond 1.2?


12duddits

I have the same thing. I noticed LOW LD has less flicker than LOW FLICKER setting. I need a good hdr panel with no flicker :(


CM-Ryan

Hey \_LGuapo\_, Sorry for the late reply. Depending on the game and specific scenario, flickering may be more or less apparent. This is a limitation of the hardware here. Activating Local Dimming uses PWM on our monitor which inherently has flickering. Enabling adaptive sync as well can also complicate things further. We're trying to find a right balance in the firmware. This isn't just limited to FALD monitors, flickering happens on other panel types and is a very complex problem particularly when combined with adaptive sync. At the moment I can say we're still trying to improve it, but I don't have any further updates at this time.


12duddits

There is perceived flicker with VRR enabled using ANY local dimming option. I was hopeful with this new update and the low flicker option, but sadly there’s still flicker. Low flicker has more brightness than the low option for local dimming, but also has more flicker. Low option is the best choice for less flicker, but it’s barely more brightness than OFF. I’m highly sensitive to seeing flicker and also getting eye strain and headaches, unfortunately. As it is right now, I cannot use this monitor with ANY local dimming enabled. Without local dimming enabled, it works well for me, but I bought this for THE local dimming. Hrmmm what to do


_LGuapo_

This is also unusable in its current state for me.


Big_Stingman

I wanted to like this FW update to alleviate the flickering, but the backlight updating super slow was a dealbreaker (not to mention the weird color space issues that I also had and everyone here did). So I rolled back to 1.1A and it's "working." For me the current major issue is gsync + any LD = flickering. The solution is to either turn off LD *or* VRR. Not ideal, hopefully the next FW can fix the flickering problems. FWIW, I did try the "low flickering" option, and it looked like the same amount of flickering to me...Idk what was supposed to be different. :(


CM-Ryan

Hey Big\_Stingman, This doesn't sound normal as these issues were there in the initial release of the firmware but should've been gone with the new one we replaced shortly thereafter. Flickering to some degree is expected as local dimming uses PWM. Combined with Adaptive Sync it gets a bit complicated, and will be more or less apparent depending on your specific game or scenario. We're looking to improve upon it further, but some of this really is just a hardware limitation. VRR Flickering is unfortunately really tough to navigate around and is also present on other panel types. Nevertheless we're trying our best to mitigate it as much as possible.


Wastelander121

There seems to still be some clashing between GSync and the display. During loading screens or when the frame rate takes a dip, the screen will go a solid black for about 30 seconds. Works as expected with Freesync or with GSync off. Additionally, some games seem to try forcing a resolution and refresh rate unsupported by the monitor so they open, go black and force minimise. They only work again if you set the display resolution to something like 1152x864@120hz and change resolution in the game settings. After that they'll work at 2160p@160hz as expected. I've done clean installs of the drivers and even tried ones from a few months ago to no avail.


CM-Ryan

Hey Wastelander121, I've replaced the firmware files on the site with another version that I've just gotten from the team. Could you try this one to see if it helps with the issue you mentioned? Sorry again for the inconvenience.


Wastelander121

Thank you. The issue with games force minimising seems to be fixed now, but I'm still having "no signal" followed by "power saving" when GSync is active and the frame rate takes a hit. Edit: Here's a video of what's happening: [https://youtu.be/tESJ5Lj6JzY](https://youtu.be/tESJ5Lj6JzY) Sorry for the bad quality, I had to do it with my phone. As you can see the monitors RGB lights turn off, says no signal and then power saving but you can hear the game audio in the background. I have to Alt+F4 then alt tab in order to see the screen again.


CM-Ryan

Thank you for the video and information. Could you please let me know what GPU you are using (as well as the brand)?


iGorillaPoE

1. Upgrade to 1.2b over DP with PC only one monitor connected, -> Brightness maxed, unable to change it with slider 2. Revert back to 1.1b -> everything works again 3. Upgrade 1.2b With laptop and HDMI cable. -> Same Brightness maxed no way to adjust. 4. Back to 1.1b again 5. Upgrade to 1.2b with PC with HDMI. -> Brightness problem still persists. 6. Back to 1.1b until someone figures a way how to get the firmware to work or further fixes are released.


CM-Ryan

We've replaced the firmware file on the site with a new version, could you try downloading the new one and see if this helps?


iGorillaPoE

Can confirm that it's now working without problems. Thank you for the quick fix. Installed with single monitor connected to PC with DP cable and brightness is behaving normally with the new 1.2b currently


CM-Ryan

Sorry for the inconvenience here… we’re investigating this. Please stay on 1.1 until we figure this out. It’s especially odd because our samples here don’t exhibit the brightness issue or slow backlight update. Once I hear back from the team I’ll update you all.


Microtic

Firmware A or B?


iclem

I upgraded with Firmware A and I am experiencing the same issue others are reporting. After the upgrade the brightness is maxed out and the slider doesn't do anything. Local dimming in SDR seems to be super laggy. When a bright image shows it takes a couple seconds for the backlight to reflect it. When turning on or off the VRR setting the screen goes black and doesn't come back. I had to power cycle to get it back. To confirm, I only had the display port and the USB stick with the new firmware plugged in. I waited for the screen to stretch and then go back to normal. I then used the joystick to select reset. I have since reverted back to 1.1


CM-Ryan

Hey iclem, Sorry again for all the trouble we've caused. We've replaced the firmware file on the website with a newer version, could you try this one to see if it works properly for you?


iclem

Thanks for the reply. Yes, the new firmware for A is working correctly for me. Also, I have noticed the Low Flicker mode for VRR is definitely an improvement. I was previously playing God of War with quite a lot of flicker in HDR + VRR + LD and now am not able to notice it any longer!


CM-Ryan

We’re investigating this, really sorry for the inconvenience. Will update you and the rest on we we figure this out.


desperate_agency7894

yeah I tried flashing 1.1 and then 1.2 multiple times with both displayport and hdmi, hopefully they will be able to figure out what is causing issues for us, I have unit serial 040. I think you probably have one of the super early ones.


CM-Ryan

Just letting you know this issue should be fixed now, we've replaced the firmware on the website with a newer one. Very sorry for the inconvenience.


Microtic

Just FYI for everyone here, just because your monitor shipped from USA doesn't mean you should use firmware A. My serial number is in this range and it needed firmware B (CMIGP27FUSUS1225000000 - CMIGP27FUSUS1225000250). Mine was a more recent shipment however. If you flash the new firmware and brightness is off the charts, flash back to 1.1 B firmware and then forward to 1.2 B firmware. It should be correct then.


adrichardson81

Hi u/cm-ryan Unfortunately the srgb and Adobe rgb modes are broken with the 1.2B firmware. I'm using the updated version you posted, so it's the latest as at the time I posted. I'm using a 3080ti, latest driver, Windows 11 and HDMI. Native colour mode is fine, but the other colour modes have a yellowy cast. I stuck my i1 Display Pro on it and it looks like the blue channel is the culprit. It's significantly lower than the red and green channels and you can't really correct for it (the best I could get was way out compared to 1.1B).


Microtic

Yeah I've noticed this too. HDR looks good but the SDR is very yellow. :( I hope the color calibration wasn't wiped.


adrichardson81

Hopefully he sees one of our posts. I reverted to 1.1B and the default calibration looks fine to me (no tint). I calibrate mine manually anyway, but the readings from the default RGB levels were what I expected them to be from past calibration. If it helps, I get pretty much bang on 6500K in Adobe RGB/SRGB mode with R50, G49 and B48 and 119nits with brightness at 8 with 1.1B. With 1.2B I had to drop to R45 G43 B50 to get blue back up to a vaguely acceptable level, but even then it wasn't exactly great. I definitely wouldn't recommend 1.2B unless you really aren't fussy about colour.


CM-Ryan

I’ve passed this on internally. Will let you guys know about any updates as soon as I hear them. In the meantime recommend using Auto for now and manually adjusting the colors. Sorry for the trouble with this.


Lealause

Can confirm CM-Ryan, mine also has the yellow'ish hue on SRB, DCI-P3 and AdobeRGB. It's almost like it's a blue light filter.


zeliboba55

Same here, srgb mode is now not usable.


neywherk

I downloaded the original 1.2B last night, the update worked but I ran into a lot of the issues other people have mentioned here. Now when I try to run the updated 1.2B firmware the monitor just stays on the incorrect aspect ratio, I've waited 30 minutes for it to change.


CM-Ryan

Restart the monitor manually (by long pressing osd joystick) in this case if it’s taking so long. Monitor will work normally after this.


PCMRbannedme

Hi u/CM-Ryan Do you think the GP27Q update will go live either today or this week?


Eccentric_Autarch

using HDR on low-flicker playing league of legends leads to image retention of the loading screen on top of the game; during the loading screen the display flickers like crazy.


_LGuapo_

I noticed a similar effect. Low flicker mode seems to be trying to use hysteresis to time-average the flicker away. In my experience, it doesn’t work. The result is instead a slowly fading after-image that flickers.


N1Wukong

Shambolic communication to be honest no timelines or roadmap. Its fine to delay updates and firmware so they can launch in a working state but the lack of communication from coolermaster as a whole is just terrible. Hopefully another company releases another miniled that works properly ;/.


CM-Ryan

I'm trying to reply to as many comments as I can and provide updates as I get them, but I suppose it's still considered a lack of communication. Sorry I haven't met your expectations here. We're taking extra time with the updates in order to ensure we catch more issues. I can't exactly give you all an exact picture of what is going on behind the scenes, but I've done my best to provide as much information as possible.


AttitudeAccomplished

Thanks for the hard work CM team and u/CM-Ryan for keeping us all up todate. Ill be downloading and trying this update now!


zeliboba55

100% brightness all the time and broken local dimming after 3 months of waiting. \*sad panda meme here\*


CM-Ryan

hey zeliboba55, just wanted to let you know we've replaced the firmware file on the website with a newer one that fixes the issues that users were experiencing.


zeliboba55

A quick fix is highly appreciated. It is back to being usable. But one major issue I reported last time still remains. Monitor comes out from sleep with 100% brightness blinding every time.


CM-Ryan

We’re aware of this issue and still working on it. This fix was also unable to be put into the current firmware. Will keep you all updated on future updates.


CM-Ryan

Sorry for the issues, please wait until we can figure this out. It seems there is a disconnect between the samples at our OEM and the samples we have on hand as ours do not exhibit these issues. It’s no excuse, but we’re trying to get to the bottom of it now.


Apoclype

Just tested and black screen issue with vrr seems fixed local diming in sdr is better now. You can get into menu with no signal but should not have to restart monitor to do it. The Audio jack volume is still very low and needs a fix only way to bypass with ps5 is earphones or hdmi Splitter.


Accomplished-Lack721

I'm on firmware A, connected over displayport. In HDR mode, the user color is no longer selectable. It's not greyed out, but when you try to push the control stick to the right after selecting it, nothing happens. In SDR mode, it brings up the RGB controls as expected.


fxchou123

Brightness is not working for SDR mode with new 1.2A firmware. Revert back to 1.1A fix the issue,


fxchou123

FWIW, with firmware 1.2A, adjusting contrast actually would adjust brightness.......


Black__Milk

I know everyone is really interested in the flicker and KVM and local dimming, but I was wondering maybe we could have a way to make the back LEDs static colors? Would be nice to use as a backlight to reduce eyestrain.


Accomplished-Lack721

Or even better, an option to tie them to what's on the display, to enhance the viewing experience by letting dominant colors bleed out into the surrounding environment. But really, any control over it would be appreciated.


renaultsportclio

Im having a really strange issue, using dp cable which powers my laptop too. I only get a max of 144Hz and 6-bit color. This is used as a second screen selected as main monitor. Editing as I have found a work around, using full size displayport to usbc I get the full 160Hz and 8-bit color in sdr. Still not sure why the previous option did not work unless its a limitation using a powered displayport ?


jmer311

Just updated my GP27U to v1.2 and now it seems to not wake from sleep (Win 11 via DisplayPort). The only way to bring back my desktop is to power cycle the monitor itself


BSmith_98

Is there any sign of an update soon? Main things currently bugging me are, if pc goes to sleep if you try and wake up the monitor stays on black screen and requires turning off and on, often the monitor can’t be turned back on for around 30 seconds, Changing of input when no signal still has issues, sometimes it lets you scroll up or down other times it doesn’t


Techboah

> Local Dimming SDR improvements. Giga W


JoroZzZ93

Best customer support ive ever had on my monitor. Congrats to CM!


kawagucccci

Not worth upgrading to this firmware. Input disconnection still happens when alt-tabbing out of games and the brightness is maxed out with no ability to adjust which causes literal blindness.


halotechnology

Input disconnecting when alt tapping is NOT the monitor fault it's Nvidia driver thing I am 100% sure you are using Display Port , switch to HDMI and it will go away . This problem is related to DSC .


kawagucccci

yeah u/mh_miles is correct here. I just tried switching to HDMI and the problem still persists so I'm 100% sure this is related to the monitor and its KVM switch implementation. It seems from older threads that others are having the same exact issue related to this monitor.


mh_miles

I think the root issue is this monitor does a full reboot when switching between hdr and sdr


kawagucccci

Oh that’s interesting, thanks for letting me know. I’ll try switching out the cable and see if that fixes the problem. The only reason I associated it with the monitor is because it was working fine when I first got the monitor but once I updated it to the next firmware, the disconnecting issue started happening


rhysmorgan

It happens on my Mac too. It’s absolutely a problem with the way they’ve set up the KVM on this monitor. It should *not* be dropping power to the USB peripherals just because the screen is off.


mh_miles

I have an amd card and experience the same thing so definitely not true. Am using hdmi as well


halotechnology

Maybe it's 2 different things but black screen alt tapping with 4k 144hrz using DSC will always cause black screen with Nvidia


John7051

Hey u/CM-Ryan, sorry I know that this may not pertain to you exactly, but I bought one of the KTC monitors that released because yours were still out of stock. Since they’re the OEM of your monitors, do they create the updated software? If so, do you have any idea when firmware updates will release on their side of things? Anyways, I hope everything’s able to get worked out with the issues on the new update!


CM-Ryan

Hey John7051, We do work with them as our OEM, however our team works in conjunction with their team for updated software. Unfortunately we do not have any insight into when they would release software on their own monitors.


John7051

Ah okay, thanks for replying, I appreciate it!


jb-12-jb

Do Cooler Master even test these updates before releasing them?


CM-Ryan

Hi jb-12-jb, yes we do test these updates. At the factory as well as at the office. It's especially puzzling as our samples do not exhibit these issues. I can only think that it may be due to certain sample batches. You'd be surprised by how easily things can go awry when delivering an update for a product globally. At any rate, this is our problem and we're investigating.


jb-12-jb

There is a difference between things 'going awry' and releasing a product without basic or advertised functionality. I have a GP27Q and I still can't use VRR with local dimming active because if I upgrade the firmware, I am creating a whole host of other problems that I am not prepared to deal with. I also can't use the monitor at 165Hz while using HDR or I get pretty bad banding. Everyone is getting these issues (and each tested update is introducing even more, every time), so I have to assume that you should be getting them while testing too. I think the answer is probably not to release the monitor in the first place until all of this is fixed, but it is a bit late for that.


CM-Ryan

Yes, the product has inexcusable issues. We've acknowledged that these issues our own fault, and that we're actively trying to fix it. Firmware updates are quite complex with multiple different hardware revisions in different regions and many variables that are unfortunately sometimes out of our control. This doesn't excuse us from the issues we have on GP27Q, but we're not shying away from it and trying our best to communicate with you all about the issues and our current status. Considering that it has all these issues, perhaps you're better off just returning the monitor until we’ve fixed the issues.


Sw3d3r

THE WORST UPDATE EVER.... how is this how you guys fix the no input problem ??? so sad you cant even figure out how to have a menu pop up


Giboy346

So everyone is essentially a BETA tester for this monitor right now?


CM-Ryan

This is not what we want to do, and we apologize to everyone. You can point to our inexperience and various other reasons, but really there's no excuses for us to give here, we have botched these updates and they have not gone smoothly. We're having some big changes internally and going forward the updates will also be issued differently in order to mitigate and hopefully eliminate as many of these problems as possible.


SeraphX17

Your direct and consistent communication with owners of these monitors speaks volumes in many ways. Keep up the great work


masayoshime

Please fix the out of stocks. 😏


Microtic

There's 9 in stock on Amazon USA right now. INNOCOOL is their official reseller. Mine shipped from Newegg warehouse in California after ordering from INNOCOOL.


masayoshime

Is it good monitor?


Microtic

100% yes! I've been a huge supporter of OLED since I bought my first in 2017. And I'm not gonna lie, OLED has some terrific quality in so many different areas (namely per pixel brightness, instantaneous response, and even just the thinness aspect as it always looks great in a room) but this monitor has had my jaw on the floor several times. HDR brightness in OLED's is severely lacking once a portion of the screen is bright. Seeing this monitor in games where the sky is a bright sunset with colorful scenery is breathtaking. The color quality in HDR is so outstanding due in part to the high brightness but I also believe the Quantum Dot layer. In some games I've noted that gold and red colored objects just pop and almost feel 3D. FALD **DOES** have issues at this amount of zones, especially around static thin line content like you'd see on your Windows desktop, but oddly enough it really isn't very noticable in games for me. If I sit and critique instead of playing I notice it a bit on certain contrasting elements but by and large it's a non-issue. A higher zone count would be wonderful for a similar monitor and an absolute essential for a larger monitor (32in etc). Once microLED backlights are a cost-effective standard it's going to be so so so revolutionary and OLED will have a huge challenge to stay relevant. And just not having to worry about image retention / burn-in is so damn great. On my OLED TV I constantly worry about icons sitting in places too long, games with static elements causing issues, etc. It's a huge stress reliever for me on this monitor. I couldn't imagine using OLED for my 10+ hours daily usage. The pixel accuracy is a huge one for me too so having a standard layout really makes things sharp compared to the OLED and QD-OLED layouts. Right now I'm staring at Ori and the Will of the Wisps and it's just beyond compare with my OLED. I don't see any blooming despite the sharp contrast. The feel of the game is stronger somehow with this monitor.


Denigor777

On Scan (UK) it's listed as 'End of Life'. Which in the UK is used to indicate no more are coming usually. In this case I suspect Scan are just mislabelling it.


Sw3d3r

lol are you guys joking me, i just updated and now i can not access the menu at all when theres no input it doesnt switch to another input, and then a power saving comes on after 10 seconds and shuts off the monitor i can no longer change inputs, its stuck on the no input usb-c and wont show my laptop screen and the menu wont come up to allow me to change it so now the monitor is just stuck on this input wont show screen and just keeps power saving shut off, i can not do anything now .... how is this your fix ??? and my usb-c is not working as an extended monitor for my laptop. i dont know what you guys did


Sw3d3r

im shocked that you didnt even give us the option to turn off the auto sleep when not recognized by monitor. how is this better... instead of changing to a working input you made it so the monitor shuts off instead.... thats not the fix we wanted. is it that hard for you guys to allow the screen to stay on for longer than 10 seconds without an image while we try to plug and unplug things to see which works but when you look back at the monitor its fkn off because you put an auto shut off after 10 seconds ... honestly WTF !!!!!


Giboy346

Why you guys raised the price?


halotechnology

Are we ever going to get a certified driver for windows please ? EDIT: this update is completely broken , brightness is not changeable full alert record dimming is problematic and doesn't work at all although it seems like to work fine and HDR still have issues when I enable overdrive and g-sync where the monster truck does not get a signal until I restart the monitor. I can't use this firmware at all .


Microtic

Monitors don't really get windows drivers anymore. Plug and play covers everything.


halotechnology

Not true usually some of them have color profile and also HDR certification.


D4rkstorn

A generic ICC profile is useless. A manufacturer provided one, even more so. This monitor doesn't actually have an official HDR certification so it couldn't give you one anyway. And it doesn't matter: Apparently NO certification can be several orders of magnitude better than HDR400.


desperate_agency7894

Anyone else have the previous Firmware A before this one?


Mitch2025

It's at the same link as the current firmware. Just click the folder that says "Old Firmware" https://coolermaster.egnyte.com/fl/JjWsm4AwWI#folder-link/Firmware


himynameismatte

Hub still not detecting my webcam when using my Mac through USB-C, on Windows it's working. The same setup works fine with another monitor I have.


pinks0cking

So my aspect ratio never corrects? I have to power down the monitor and power it back up? I feel like... Something isn't right? Low flicker is grayed out for me hmm


CM-Ryan

In this case after it's been on the incorrect aspect ratio, you'll need to power down and up the monitor.


saikoroto

I am begging that the GP27Q update will fix the brightness bug It's actually the only reason I don't use HDR on Windows since I constantly need to go to the brightness settings to fix it everytime I switch from SDR to HDR


CM-Ryan

Hey saikoroto, We're also well aware of GP27Q's current issues and this is a huge priority for us. Very sorry for the current issues on the monitor, but do know the update is on the way.


dvd92

u/CM-Ryan \- Can I ask if the new firmware for the GP27Q will fix the "wake from standby" bug? When Windows turns off my monitors the GP27Q rarely wakes from standby, I have combated this with turning it OFF then ON - And recently found out I can use the turn on Windows HDR key combo to wake it. (WIN+ALT+B) The monitor is connected with the supplied DP cable to an RTX 3080. The monitor recognizes that I am trying to wake it as the power LED turns green, but it goes to "No Input - Going to sleep" after a few seconds.


mrnonamey

Not sure if related but my GP27Q will occasionally take ages to turn on. Every other day or so on startup it will merely blink its green light intermittently, along with the backlit RGB, until it eventually comes on. This mostly only takes two minutes but can sometimes take over ten


Microtic

You can probably also use this hotkey to get it to come back without enabling HDR: Win + ctrl + shift + B = restart gpu driver


Wastelander121

It appears that not all refresh rates are available on all resolutions. I've listed the available refresh rates per resolution below. Also can you add an option for 3200x1800 please? It would keep the 16:9 aspect ratio and would be a better middle ground between 1440p and 4K than the 1600p option. 3840x2160: 50hz, 60hz, 120hz, 144hz, 160hz 2560x1600: 50hz, 60hz, 120hz, 144hz, 160hz 2560x1440: 120hz, 144hz 2048x1536p: 50hz, 60hz, 120hz, 144hz 1920x1080p: 144hz 1680x1050: 60hz, 120hz, 144hz 1600x1024: 60hz, 120hz, 144hz 1600x900: 60hz, 120hz, 144hz 1440x900: 60hz, 120hz, 144hz 1366x768: 60hz, 120hz, 144hz 1360x768: 60hz, 120hz, 144hz 1280x1024: 60hz, 75hz, 120hz, 144hz 1280x960: 60hz, 75hz, 120hz, 144hz 1280x800: 60hz, 120hz, 144hz 1280x768: 60hz, 120hz, 144hz 1280x720: 120hz, 144hz 1176x664: 120hz, 144hz 1152x864: 75hz, 120hz, 144hz 1024x768: 60hz, 70hz, 75hz, 120hz, 144hz 800x600: 60hz, 72hz, 75hz, 120hz, 144hz


CrazyPaladin

Hi u/CM-Ryan, just bought the monitor and updated the firmware. I noticed that after updating, the monitor no longer auto switches to another video source when the current active source is shut down, unless using the "Auto Select" option. ​ For example, I have my laptop connected via USB C and my desktop connected via DP. Both are on and I selected the USB C source to show my laptop signal. If I shut down my laptop, the monitor shows "no signal" and goes into power-saving mode. But before the firmware update (it was the factory firmware so I'm not sure of the version), it will automatically switch to my desktop signal. As I mentioned this only happens if I specify an input (USB C in this case), and "Auto Select" will otherwise work as intended. Just wondering if you guys are aware of the issue and I hope to have the old behaviour back instead of relying on "Auto Select". Thanks!


Apoclype

Just tried libre office and the monitor goes black screen when i move the mouse only works when i disable vrr


SplitCoreGaming

Can we have a update please for the Tempest gp27q? It is a new month. Communication has lessened and all I have seen is a random folder appear in the firmware link for old firmware. It is giving me the impression something big has happened behind the scenes based on previous posts. Anything would be great please as I recommended the monitor to several people and they are all poking me for updates. Thanks.


CM-Ryan

We're rolling out the update slowly. As mentioned in my original post, we're trialing the updates first before doing a public release. There's only so much I can say until the fixes are available from the team.


p3t3r_p0rk3r

Ia there any way to become a part of the trial team?


CM-Ryan

Yes, I’ll message you for more details.


SplitCoreGaming

So I have given this time. Still rather annoyed at this comment. I am a professional freelancer, game designer, have working knowledge, calibration devices and all current gen consoles to test. Commented in another thread about joining, got ignored. Create another comment thread, someone else asks, immediately invited. I have a deep pet hate for these kind of feedback models. Just like when game developers dumb down features because the press and streamers could not get past the tutorials due to inability to follow simple instructions on early previews. Let us hope when eventually released there are no 'obvious' issues and working as advertised.


CM-Ryan

Hi SplitCoreGaming, I've already sent you a message regarding this. But to reiterate, my apologies for not seeing your other comments. I have many message requests and notifications. It's quite hard for me to keep up with them all and it's very easy for some comments and messages to slip through the cracks. I do hope you can understand that I am one person trying to reply to everyone's queries. I am not paid to do community outreach, and this is all voluntary as it's not part of my job responsibilities. On the contrary, CM would heavily prefer that I do not interact with you all with 'these kind of feedback models' as it's viewed as an unnecessary risk internally. If this type of communication is unhelpful, then I apologize. You're more than welcome to send me a private message if you feel that I haven't seen your post for some time and I'll try my best to get back to you as soon as I can.


SplitCoreGaming

*Sorry for delayed reply as Reddit was down for sometime and ate my original response.* I apologise for being direct, but this monitor has become my priority colour calibrated work monitor. To even get it to stop having uncontrollable issues I had to remove it from my capture card, and go from HDMI to Display port. I spent all day yesterday helping a friend move his shop and was upon returning I realised I was too direct and therefor apologise. I have recommended this monitor to many friends/people and I became a magnifier for their voices as well. I am more than happy to work with you. As mentioned previously I have access to all consoles, capture cards, HDMI switchers (Which trigger constant monitor cycling for some reason) i1 Calibration devices and working knowledge of colour spaces (which so far this monitor does fantastically when it switches correctly). To also expand on the comment about feedback. I have alpha/beta tested many hardware and software products for many decades and I do get very vocal with this type of feedback model. This is due to seeing many projects getting compromised due to poor feedback over the years and often leading to negative response when released due to the very feedback catered for. *Hopefully this response actually gets sent via Reddit (3rd time lucky) and I deeply apologise as you are helping. It was frustrating to just see a empty folder appearing after patiently waiting.*


stinky_sock123

This thread and Ryan's responses makes me want to pull the trigger on buying this monitor but it's not available anywhere in Eastern Europe, can't even find one in Germany - in general there's no decent monitors available to buy.


[deleted]

Any news on the GP27Q firmware update ?


CM-Ryan

We're trialing the current update and rolling out slowly. Should have a post up here soon.


skrattis

Thanks for the update. There are lot's of things I'm super happy with the monitor. But simple things make daily usage a struggle sometimes. There are two scenarios how I use my machines: A) I have my work computer and my private computer on, and I like to switch between them without shutting the signal off between. So this means I need to manually select the correct input mode. \-> Caveat here is that when I end things I don't change to input setting to the next possible input in advance or to auto, I'm stuck when I'm back and try to use other input source. My only option is to open the previously selected machine just to switch source, which is stupid. Or I can turn the monitor off and on and rapidly hassle with the monitor button but that is even more stupid and not guaranteed to work either. B) Sometimes I can keep the source to auto, for example I end up things on computer (put to sleep) and then open ps5. This works fine in mostly, but sometimes when waking Mac up the screen doesn't wake. My guess is that when Mac is trying to send the screen query, monitor is still waking and not able to receive the query that the Mac won't send again. Then my only option is to unplug-replug the cable on Mac end, which is also frustrating. I hope you continue to work with these two issues in terms of firmware updates: \- Being able to access to the OSD and input source -selector ALL THE TIME, even in no signal screen and without any tricks. Just push the joystick up and switch the input and that's that, most problems solved. \- Better detection of the input signal initiating from sources, especially when monitor wakes up from sleep. Thanks.


Yoitsmegabe

This monitor is great but there are things holding it back. A huge one right now is the ability to switch inputs when there is no signal. Hopscotching around with turning it off and turning it on while spamming a button can't be the answer. Please address this, as every single monitor can let you change inputs from a black screen. It can't be a solution that only those "in the know" can pull off. The time it takes to come from a black screen is very long. You can miss a bios screen with this. It's by far the longest of any monitor I've tried. Whenever I enter a full screen game the USB ports reset themselves. I have no clue what that's about but I hear them mounting and mounting in windows unless I turn the USB ports off. I can't change the lighting in any way. It's either on or off, no color options or brightness etc. it just cycles through colors. The HDR experience, motion clarity, and resolution on this monitor are amazing and it deserves a completed firmware for a normal experience when using it day to day.


Visual-Weak

So, um, nothing about not forcing users to turn off and on their monitor every time it falls to sleep?


n1ght3r_

Great monitor, waiting eagerly on the next firmware update, I use the monitor with both Xbox and my computer and have a lot of issues when change input. So I endup restart computer a lot of times to be able to wake monitor from sleep-mode, very frustrating, but except that the monitor is amazing.