Youtube, Discord, Visual Studio Code are flickering with black checkered squares/vertical lines. Partial solutions to this issue.

[FlyingScot_TDP]

So Its possible I am experiencing an additional problem on top of the checker-boarding. Since I put Chrome back on the OpenGL Flag, I haven't noticed the checker boarding at all, but the reason why I think I am experiencing a different but related issue is, even though the checker boarding is gone, I am seeing flashes of random colors and artifacts, but very infrequently. It will be literally for one frame, maybe once or twice in a video. I haven't been able to reliably reproduce this exact issue, but it didn't start until after I installed that last Windows Update, and it did not go away when I switched to OpenGL, so its the only issue I am still currently experiencing.

I am on Windows 10 Enterprise and I control my Updates via Group Policy, and I assumed me not seeing the update was due to one of my GP Settings.

My Rig In Question:
7900X3d (I know, an odd choice of a CPU, at the time I bought it I just needed the cores and the 7950x3d wasn't available at reasonable prices, so I got the 7900x3d even though it has its many flaws.)
MSI x670E MEG ACE mobo
EVGA RTX 3080 FTW3
64GB GSKILL 6000 MT Kit
Win 10 Enterprise 22H2 - 19045.4598
WFE = 1000.19060.1000.0
(My RTX 3080 is not Overclocked, but the Power Limit is set to Max. When initially diagnosing this issue I disabled EXPO, and it didn't make a difference to the Checkerboarding, it happened whether I ran my Kit at JEDEC or at the Included Expo Profile.)

I have a total of 3 Displays Connected to my Rig. It only happens on my Main Display, which is a Samsung S95B OLED TV, set to 4k 120Hz HDR with VRR enabled.
1 of the Other Displays Connected Run at 1080p 60hz and doesn't exhibit the issue.
The Last Display gets Captured by my PiKVM, so its 1080p 50hz, (My PiKVM is Version 3.3 so it isn't capable of capturing at 1080p 60hz) and also does not exhibit the issue.

I have only had one other update since updating to KB5039299, and I didn't do that until this morning, it was just a Defender Definitions update (KB2267602) so I doubt it affected Microsoft's fix (Not to mention I first noticed the problem was still happening Yesterday, before I ever installed the newest Defender update.)

This problem has been pervasive. Up until the KB5039299 update, the one and only issue I had was the random Checker-boarding and Artifacting Issue I would get while watching Youtube Videos on Chrome. Because of how constant the issue was, I actually ended switching back to using Firefox for 95% of my Browser usuage, including watching YouTube videos, and not once did the Checkerboarding happen during this time. I only ended switching back to Chrome recently, about maybe 50 Days ago or so, when YouTube started to constantly Freeze while Buffering while watching Videos in Firefox. I believe Youtube is testing some new methods of blocking adds or something, and it appears to be messing with the Performance in Firefox. I am a Youtube Premium Subscriber, so its really annoying that their efforts at blocking ads is effecting me as a PAID User, but during this time I went back to Chrome to Watch Youtube, and immediately started getting the Checkerboarding issue again. So Finally I started researching the issue again, and came across this thread and others that talked about setting the Angle Flag to fix the issue, and that did work for me. But I would still occaisonally see Checkerboarding infrequently in Discord. So I was happy to learn that KB5039299 came out for Windows 10, I installed and rebooted, and then set Chrome back to Default. At first all seemed fine, it wasn't until the next morning that the Checkerboarding started happening again. So I set Chrome back to OpenGL, which fixed the Checker-boarding again, but now I am randomly seeing these weird flashes. Its like, for just one frame, the colors on the video are inverted. It happens so quick, its just a flash, and it might not happen for a few videos, but then all the sudden in One Video I might see it 2 or 3 times. I've never ever seen this specific issue until after getting KB5039299. So I don't know what the heck is going on, but it may turn out that I suffer from a different issue in addition to the Checker-boarding issue. They seem related, but I have no evidence to back that up. I will set up a camera to point at my TV to see if I can capture these brief frames on Camera as soon as I can. I just hope there isn't actually something wrong with my 3080. I was one of the Lucky few that was able to buy one at Launch. and now that EVGA has ceased their GPU Business, I have no idea if I could even get an RMA (I think I am outside of the warranty period anyway.)

Anyways, I will shut up now. It does not appear that KB5039299 fixed the Checkerboarding for me, and it appears to have introduced a new issue. But I will wait to see if anyone else happens to see this after installing it. I am super glad that it did seem to fix the problem for you, we have extremely similar rigs, the major difference seeming to be that I am running Enterprise, no idea if thats a factor in this or not, just an interesting difference. Anyways, thank you for your help, sorry for typing too much.

Hey, that's fine. I like more detail than less. Although, judging from your system specs, you are way above the average user, and likely have far more expertise/experience than I do. Compared to your setup, I have a simple one-monitor system with Windows 10 Home. At least on the PC in question, which is primarily for gaming. Interestingly enough, I have Windows Pro on another PC of very similar specs (including the same Windows/software versions) yet I have not installed the KB patch because I don't get the checkerboarding. It has an RTX3060 (from EVGA) which is one Nvidia series that people commonly report as checkerboarding, along with the RTX3080 series. In theory, it should be suffering from the checkerboarding too, but it isn't. At least, not yet. I guess I should list both PCs specs so we can see the differences. I do plan to swap the graphics card and monitors at some point in the near future. Perhaps I will stumble upon something hardware related.

So, here's a question to keep in the back of our minds. What the heck is it about my two PCs that cause one to checkerboard and the other to not? Of course, the obvious answer might be the display and the display cable. But I doubt it's that simple.

PC #1 - checkerboarding issue required KB5039299 patch to fix

PC #2 - no checkerboarding / no KB5039299 patch applied

10600K MSI Z590 Gaming Plus (motherboards are almost identical / share many of the same drivers) 16GB G.Skill DDR4-3600 ASUS TUF RTX3080 12GB Nvidia driver 551.76 Windows 10 Home 22H2 22H2 (19045.4598) / WFE=1000.19060.1000.0 Samsung 850 Pro 256GB (OS drive) SAMSUNG 970 EVO PLUS M.2 2280 1TB WD 1TB Black ASUS 1440P PG279QM (DisplayPort-to-DisplayPort) Microsoft Edge 126.0.2592.81 Logitech Mouse Seasonic PSU Software Apps all the same versions

11600K MSI Z590 Carbon WIFI (WIFI+Bluetooth disabled) (motherboards are almost identical / share many of the same drivers) 16GB G.Skill DDR4-3600 EVGA RTX3060 12GB Nvidia driver 551.76 Windows 10 Pro 22H2 (19045.4529) / 1000.19058.1000.0 Samsung 860 Evo 256GB (OS drive) SAMSUNG 970 EVO PLUS M.2 2280 1TB (different controller) WD 250GB Blue (temporary) Samsung TV (DisplayPort-to-HDMI) Microsoft Edge 126.0.2592.81 Logitech Mouse Seasonic PSU Software Apps all the same versions

Here's what I would do if I were in your position to try and diagnose the two separate issues you're having:
I'd play a AAA game for awhile to see if the color flashing happens in the game (unless you've already done this). The color flashing you describe is what I've see when GPU core (and sometimes VRAM) is pushed too far with overclocks.
I'd run HWInfo64 to monitor GPU temps (main, hotspot and VRAM) to see if they are running close to peak stable temps. 80C+ is starting to get hot for both Core and VRAM, and might start causing issues when overclocked.
I'd return GPU power to the normal 100% level (then to 90%) and definitely try underclocking the VRAM, too.
I'd try disconnecting the two secondary monitors to see if that makes a difference for the checkerboarding issue in Chrome.
I'd try using Microsoft Edge to see if at least the checkerboarding goes away. Microsoft is in a fight with Google after all. Perhaps the Chrome fix isn't as robust....

Perhaps one of the above steps might point you in the right direction. Again, we can't rule out that somehow a combination of hardware and OS version causes the issue. It puzzles me how one of my PCs is fine.

 

[MattTheTechLV]

Hey, that's fine. I like more detail than less. Although, judging from your system specs, you are way above the average user, and likely have far more expertise/experience than I do. Compared to your setup, I have a simple one-monitor system with Windows 10 Home. At least on the PC in question, which is primarily for gaming. Interestingly enough, I have Windows Pro on another PC of very similar specs (including the same Windows/software versions) yet I have not installed the KB patch because I don't get the checkerboarding. It has an RTX3060 (from EVGA) which is one Nvidia series that people commonly report as checkerboarding, along with the RTX3080 series. In theory, it should be suffering from the checkerboarding too, but it isn't. At least, not yet. I guess I should list both PCs specs so we can see the differences. I do plan to swap the graphics card and monitors at some point in the near future. Perhaps I will stumble upon something hardware related.

So, here's a question to keep in the back of our minds. What the heck is it about my two PCs that cause one to checkerboard and the other to not? Of course, the obvious answer might be the display and the display cable. But I doubt it's that simple.

PC #1 - checkerboarding issue required KB5039299 patch to fix

PC #2 - no checkerboarding / no KB5039299 patch applied

10600K MSI Z590 Gaming Plus (motherboards are almost identical / share many of the same drivers) 16GB G.Skill DDR4-3600 ASUS TUF RTX3080 12GB Nvidia driver 551.76 Windows 10 Home 22H2 22H2 (19045.4598) / WFE=1000.19060.1000.0 Samsung 850 Pro 256GB (OS drive) SAMSUNG 970 EVO PLUS M.2 2280 1TB WD 1TB Black ASUS 1440P PG279QM (DisplayPort-to-DisplayPort) Microsoft Edge 126.0.2592.81 Logitech Mouse Seasonic PSU Software Apps all the same versions

11600K MSI Z590 Carbon WIFI (WIFI+Bluetooth disabled) (motherboards are almost identical / share many of the same drivers) 16GB G.Skill DDR4-3600 EVGA RTX3060 12GB Nvidia driver 551.76 Windows 10 Pro 22H2 (19045.4529) / 1000.19058.1000.0 Samsung 860 Evo 256GB (OS drive) SAMSUNG 970 EVO PLUS M.2 2280 1TB (different controller) WD 250GB Blue (temporary) Samsung TV (DisplayPort-to-HDMI) Microsoft Edge 126.0.2592.81 Logitech Mouse Seasonic PSU Software Apps all the same versions

Here's what I would do if I were in your position to try and diagnose the two separate issues you're having:
I'd play a AAA game for awhile to see if the color flashing happens in the game (unless you've already done this). The color flashing you describe is what I've see when GPU core (and sometimes VRAM) is pushed too far with overclocks.
I'd run HWInfo64 to monitor GPU temps (main, hotspot and VRAM) to see if they are running close to peak stable temps. 80C+ is starting to get hot for both Core and VRAM, and might start causing issues when overclocked.
I'd return GPU power to the normal 100% level (then to 90%) and definitely try underclocking the VRAM, too.
I'd try disconnecting the two secondary monitors to see if that makes a difference for the checkerboarding issue in Chrome.
I'd try using Microsoft Edge to see if at least the checkerboarding goes away. Microsoft is in a fight with Google after all. Perhaps the Chrome fix isn't as robust....

Perhaps one of the above steps might point you in the right direction. Again, we can't rule out that somehow a combination of hardware and OS version causes the issue. It puzzles me how one of my PCs is fine.

I appreciate your thoughts on this. From what I have read on all the threads about this checker-boarding issue, it seems the common thread (other than it being Nvidia GPUs, on Windows) is that the people experiencing it all seem to be reporting it happen on Refresh Rates above 60hz. I don't know for a fact that this is the case, but it does seem to be the common thread. Your 2nd Rig that isn't experiencing the issue, what is the refresh rate of the display you are connecting to it?

So I have not tested edge since applying this update. Edge is the browser I mainly use for work when I need to login to customer accounts to administer stuff, and I might already be logged in to different accounts on the same websites in Firefox and Chrome, and already have private windows open in both, thats when I tend to open edge and use it to login to different accounts on the same website, if that makes sense(This way I don't have to constantly log in and out of the same websites, I can just dedicate a Browser to being logged into one account, while using the other browsers to log into different accounts on the same sites). I rarely will use edge to watch videos. However when testing this issue about a year ago when I first started noticing it, I did test edge and it absolutely was having the checker-boarding issue then. I have to do more testing to see if its actually fixed now. I will get back to you on that.

I use Aquasuite/HWinfo64 to monitor all of my sensors and temps, and all of that info gets logged via Aquasuite into My Home Assistant using MQTT, where I save up to 6 Months of Sensor activity, so I am able to track my Temps and Sensors over time. I have alarms setup if my absolute temperatures, as well as my Delta Temperatures, get too high, so far everything has been running nice and cool. I custom Watercool and have a dedicated overkill loop for both the GPU and CPU. My GPU Main Temp Rarely goes higher than 8 degree's above ambient while gaming (If tracking the Hotspot GPU Temp, the Delta between Ambient and GPU Hotspot can go as high as about 15c), and I have never seen my GPU Hotspot temp go above 52c, and thats while gaming, when not gaming and just watching YouTube videos my hotspot temps never climb above 44c, and thats with my Room Temps as high as 32c (I live in Vegas, and this is usually as hot as my room gets before the A/C kicks in and brings my Room temps back down to a more reasonable 25c.) Anyways, all of this is to say that I am constantly monitoring and logging my Sensors, and have the ability to go back and analyze my sensors when experiencing issues, and so far have not noticed any abnormal temperature issues.

But I do definitely need to do some gaming now that I have this new update, just to make sure their aren't any issues when really pushing the card. I can say that before getting this update I definitely was NOT having issues while gaming. I not ONCE saw the Checker-boarding while actually playing any game. During this year while the checker-boarding was happening during Chromium based YouTube watching, it didn't happen once while Gaming. And at the time I was playing a crap ton of Starfield (It took me a lot longer than most to burn out on that game), and then the new DLC for Cyberpunk came out, so I was playing a bunch of that after I finally got sick of Starfield, I also replayed Mass Effect Legendary Edition and Mass Effect Andromeda, and then my Fair Share of Apex, Hogwarts, and a bunch of other games that I dabbled in over the past year in my free time. Not once did I notice any Checker-boarding or weird artifacting during any of that. I will need to play some games now though and see if this weird inverted color flashes happen while playing.

Anyways, I will do some more testing over this weekend and report back if you or anyone else is interested. I am curious to find out what Framerate you are running your secondary PC's Monitor at. I have a feeling you aren't seeing the issue there because your Display is running at 60hz, It seems that higher frame rates seem to be the common thread. I also have multiple systems at my house, but all of them I use remotely except for my HTPC Rig hooked up to my Downstairs Living Room TV, and that is only 4k 60hz, and that never exhibits this issue.

I appreciate your thoughts on this, I have tried all of the diagnostic steps you have listed already, except for disconnecting my secondary displays, thats a good idea, I am going to try that tonight. I also am going to uninstall MSI Afterburner and set the Power Levels back to 100% just to make sure that isn't contributing to the new issue I am experiencing. I will also lower the power level too. This was a step I tried when initially diagnosing the checker-boarding issue a year ago, and it made no difference, but it might make a difference with this new issue, so I will report back after I have had time to try it.

OK Shutting up now, lol! Thanks for your thoughts!

 

[FlyingScot_TDP]

I appreciate your thoughts on this. From what I have read on all the threads about this checker-boarding issue, it seems the common thread (other than it being Nvidia GPUs, on Windows) is that the people experiencing it all seem to be reporting it happen on Refresh Rates above 60hz. I don't know for a fact that this is the case, but it does seem to be the common thread. Your 2nd Rig that isn't experiencing the issue, what is the refresh rate of the display you are connecting to it?

So I have not tested edge since applying this update. Edge is the browser I mainly use for work when I need to login to customer accounts to administer stuff, and I might already be logged in to different accounts on the same websites in Firefox and Chrome, and already have private windows open in both, thats when I tend to open edge and use it to login to different accounts on the same website, if that makes sense(This way I don't have to constantly log in and out of the same websites, I can just dedicate a Browser to being logged into one account, while using the other browsers to log into different accounts on the same sites). I rarely will use edge to watch videos. However when testing this issue about a year ago when I first started noticing it, I did test edge and it absolutely was having the checker-boarding issue then. I have to do more testing to see if its actually fixed now. I will get back to you on that.

I use Aquasuite/HWinfo64 to monitor all of my sensors and temps, and all of that info gets logged via Aquasuite into My Home Assistant using MQTT, where I save up to 6 Months of Sensor activity, so I am able to track my Temps and Sensors over time. I have alarms setup if my absolute temperatures, as well as my Delta Temperatures, get too high, so far everything has been running nice and cool. I custom Watercool and have a dedicated overkill loop for both the GPU and CPU. My GPU Main Temp Rarely goes higher than 8 degree's above ambient while gaming (If tracking the Hotspot GPU Temp, the Delta between Ambient and GPU Hotspot can go as high as about 15c), and I have never seen my GPU Hotspot temp go above 52c, and thats while gaming, when not gaming and just watching YouTube videos my hotspot temps never climb above 44c, and thats with my Room Temps as high as 32c (I live in Vegas, and this is usually as hot as my room gets before the A/C kicks in and brings my Room temps back down to a more reasonable 25c.) Anyways, all of this is to say that I am constantly monitoring and logging my Sensors, and have the ability to go back and analyze my sensors when experiencing issues, and so far have not noticed any abnormal temperature issues.

But I do definitely need to do some gaming now that I have this new update, just to make sure their aren't any issues when really pushing the card. I can say that before getting this update I definitely was NOT having issues while gaming. I not ONCE saw the Checker-boarding while actually playing any game. During this year while the checker-boarding was happening during Chromium based YouTube watching, it didn't happen once while Gaming. And at the time I was playing a crap ton of Starfield (It took me a lot longer than most to burn out on that game), and then the new DLC for Cyberpunk came out, so I was playing a bunch of that after I finally got sick of Starfield, I also replayed Mass Effect Legendary Edition and Mass Effect Andromeda, and then my Fair Share of Apex, Hogwarts, and a bunch of other games that I dabbled in over the past year in my free time. Not once did I notice any Checker-boarding or weird artifacting during any of that. I will need to play some games now though and see if this weird inverted color flashes happen while playing.

Anyways, I will do some more testing over this weekend and report back if you or anyone else is interested. I am curious to find out what Framerate you are running your secondary PC's Monitor at. I have a feeling you aren't seeing the issue there because your Display is running at 60hz, It seems that higher frame rates seem to be the common thread. I also have multiple systems at my house, but all of them I use remotely except for my HTPC Rig hooked up to my Downstairs Living Room TV, and that is only 4k 60hz, and that never exhibits this issue.

I appreciate your thoughts on this, I have tried all of the diagnostic steps you have listed already, except for disconnecting my secondary displays, thats a good idea, I am going to try that tonight. I also am going to uninstall MSI Afterburner and set the Power Levels back to 100% just to make sure that isn't contributing to the new issue I am experiencing. I will also lower the power level too. This was a step I tried when initially diagnosing the checker-boarding issue a year ago, and it made no difference, but it might make a difference with this new issue, so I will report back after I have had time to try it.

OK Shutting up now, lol! Thanks for your thoughts!

Wow, I'm major impressed with your setup. It's very sophisticated given all the hardware and software you had to setup and maintain.

You were spot on when you suspected that PC #2 was running at 60Hz. Bingo! Like a dummy, I didn’t read the first post by the originator of this thread. Credit goes to him for discovering that 60Hz thing. I guess the mystery as to why only one of my systems exhibits the checkerboarding is now solved. PC#1 is always running at 144Hz or 240Hz, depending on what I'm testing. Of course, my mind now goes to thinking that maybe Microsoft did not test their fix on various multi-monitor setups. Perhaps that is indeed your issue. Looking forward to hearing the results of your testing. I guess we need to keep an open mind as to whether the color flashing you are seeing is related to the checker-boarding on not. Methodical testing should push you one way or the other, including whether it is hardware related. I think these RTX3080's do better with undervolting than overclocking. You definitely should try backing off the power/overclock and see if the color artifacting goes away.

I'll wait for your next update. BTW, our discussion has already born fruit, at least at this end. I now know that I'll have to apply the KB patch to PC#2 before I connect it to the ASUS monitor. I can only hope that you find a setup that works at your end. Incidentally, OCCT v12+ has a number of benchmarks and stress tests that you can select from. I had lots of flashing in that app when running them. In your case, the VRAM test might be good one. OCCT v11 was not Linux/Chromium based and had no such flashing. You might find using OCCT v12+ is easier than messing with browser content, and you can do it while actually stress testing your GPU. You get to kill two birds with one stone!


Cheers!

 

[psychobacter]

Well, it sounds like I'm not the only one that was having major OCD over this checkerboard flashing issue. I can now enjoy my high-end ASUS monitor the way it was intended!
I'm also very relieved that my very very expensive video card does not have a hardware issue. I was puzzled at how only one of my Win10 PC's was having the issue, despite having similar specs and an identical version of Windows/drivers, etc. But in the end, it really was what people came to assume, i.e. a problem deep inside the Windows code.

I posted the same message on similar threads on the GURU3D forum and the MSI forum in and effort to get the word out as fast as possible....because I would want to know asap if someone had discovered a fix to such an annoying problem.

Cheers!

I updated my Windows 10 installation and have been using it for a couple of hours now. Everything seems to be working fine. I've only tested Microsoft Edge so far, and I haven't observed any flickering with checkerboard patterns or any other visual anomalies.

My system specs:
Windows 10 Home Build number 19045.4598
processor: i7-9750H
Graphics card: 1660Ti
Ram: 16GiB

 

[FlyingScot_TDP]

I updated my Windows 10 installation and have been using it for a couple of hours now. Everything seems to be working fine. I've only tested Microsoft Edge so far, and I haven't observed any flickering with checkerboard patterns or any other visual anomalies.

My system specs:
Windows 10 Home Build number 19045.4598
processor: i7-9750H
Graphics card: 1660Ti
Ram: 16GiB

I'm glad to hear it!
I do think the fix works. But there must be one or more edge conditions that Microsoft didn't test for, maybe like multi-monitor setups, or multi-monitor setups with certain refresh rates, etc.

 

[MattTheTechLV]

I'm glad to hear it!
I do think the fix works. But there must be one or more edge conditions that Microsoft didn't test for, maybe like multi-monitor setups, or multi-monitor setups with certain refresh rates, etc.

Hey I am not finished testing yet, which is why I have not replied to the thread yet, but I have tested enough to be able to say with 100% certainty that this new problem I have been experiencing was not introduced by the KB5039299 Update. I know this because I completely uninstalled the update and rebooted several times since, and am still experiencing the weird inverted color flashing. I also noticed that this is happening everywhere on my Main Display, not just in Chromium based applications. I am pretty sure this is due to a new HDMI Splitter I introduced into my setup to fix a completely unrelated issue, I am almost positive now that this splitter is the cause of my new problem. I installed the New Splitter the day before I installed the update, and didn't notice any issues until after I installed the update, so I really genuinely thought my problem was the update, but that was just me jumping the gun like the dumb ass I can sometimes be. So my bad there.

I plan to work on my remaining issues tomorrow afternoon and will post back when I have a resolution to keep you updated, but I can safely say that it does appear KB5039299 has fixed the problem that this Thread is for, and has not introduced any new issues. Sorry for being dumb, lol.

Definitely looking forward to hearing that it has in fact solved everybody's Checker-boarding issues. And Looking forward to hearing if @FlyingScot_TDP 's 2nd PC suffered from the Checker-boarding when you introduced the 144hz+ monitor to the setup, and if installing the KB5039299 update fixed it.

Have a great 4th of July weekend everyone!

Edit:
Oh and @FlyingScot_TDP I also wanted to thank you for the tip about OCCT now being Chromium based. OCCT has been one of the tools in my toolbox for years now, but had no idea they updated the software to be Chromium based recently, so that was a really helpful tip that has really sped things along while testing whether or not the KB5039299 update actually fixed the original issue for me. (Spoiler, it definitely did fix it, and it doesn't seem that it introduced any new issues, I was jumping the gun on that earlier assumption) So just wanted to thank you for that nugget of info.

 

[FlyingScot_TDP]

Hey I am not finished testing yet, which is why I have not replied to the thread yet, but I have tested enough to be able to say with 100% certainty that this new problem I have been experiencing was not introduced by the KB5039299 Update. I know this because I completely uninstalled the update and rebooted several times since, and am still experiencing the weird inverted color flashing. I also noticed that this is happening everywhere on my Main Display, not just in Chromium based applications. I am pretty sure this is due to a new HDMI Splitter I introduced into my setup to fix a completely unrelated issue, I am almost positive now that this splitter is the cause of my new problem. I installed the New Splitter the day before I installed the update, and didn't notice any issues until after I installed the update, so I really genuinely thought my problem was the update, but that was just me jumping the gun like the dumb ass I can sometimes be. So my bad there.

I plan to work on my remaining issues tomorrow afternoon and will post back when I have a resolution to keep you updated, but I can safely say that it does appear KB5039299 has fixed the problem that this Thread is for, and has not introduced any new issues. Sorry for being dumb, lol.

Definitely looking forward to hearing that it has in fact solved everybody's Checker-boarding issues. And Looking forward to hearing if @FlyingScot_TDP 's 2nd PC suffered from the Checker-boarding when you introduced the 144hz+ monitor to the setup, and if installing the KB5039299 update fixed it.

Have a great 4th of July weekend everyone!

Edit:
Oh and @FlyingScot_TDP I also wanted to thank you for the tip about OCCT now being Chromium based. OCCT has been one of the tools in my toolbox for years now, but had no idea they updated the software to be Chromium based recently, so that was a really helpful tip that has really sped things along while testing whether or not the KB5039299 update actually fixed the original issue for me. (Spoiler, it definitely did fix it, and it doesn't seem that it introduced any new issues, I was jumping the gun on that earlier assumption) So just wanted to thank you for that nugget of info.

Well, that's a relief! I'm very glad to hear that it was an unrelated problem. It's so easy to get tripped up when making multiple changes over a short timeframe. It does make diagnosing issues that much harder. I try my damndest to make one change at a time for that very reason, but sometimes it's just and accident or unavoidable. Anyway, I think the empirical evidence is starting to stack up on the side of the KB fix actually working. So kudos to Microsoft for fixing what they broke. Way to go!
And, yes. I will get back to you as soon as I try my 2nd PC with the ASUS monitor. I have deliberately not patch the 2nd PC so it can continue to act as my "control" system.
Cheers for now!

 

[FlyingScot_TDP]

Definitely looking forward to hearing that it has in fact solved everybody's Checker-boarding issues. And Looking forward to hearing if @FlyingScot_TDP 's 2nd PC suffered from the Checker-boarding when you introduced the 144hz+ monitor to the setup, and if installing the KB5039299 update fixed it.

Hey Matt,

I just completed my testing on PC#2. BTW, it looks like the checkerboard fix in KB5039299 is included in today's Cumulative release KB5040427. Double-check me on that.

Well, I think we can finally put this one to bed because I managed to get the Battlefield 1&5 footage on Youtube to start checkerboarding. At first, it was proving very difficult to provoke it. But then I noticed that certain things encouraged it to start, such as hovering the mouse over a thumbnail video on the side while the main video was playing, or fast circulating the mouse pointer on the main video window, or switching from 1080P to 1440P. BTW, I ran the monitor at 144Hz during the test. However, I never did manage to get it to start flashing for regular browser surfing. That was a little strange. Anyway, it looks like my 2nd PC needs the patch, and I will let this happen via the Cumulative release later this month.
We appear to be in good shape... Perhaps our O.C.D can take a little vacation!!
Cheers!

P.S. Thanks for that kind OCCT note! It always feels good to be able to help another person.

 

[MattTheTechLV]

That is awesome! Sorry it took me a few days to respond, I have had an intense couple of days with work.

So I checked to see if KB5040427 included the fixes introduced in KB5039299 and I could not find any evidence of that. Doesn't mean its not true, I only spent about 8 minutes looking into it, but Microsoft doesn't list that as a fix or improvement in their KB5040427 Bulletin update, at least not that I could see. It would make sense for them to include it though, its possible I just didn't look hard enough.

Either way, we know for sure that if you install KB5039299 it will be fixed, so at least you will be able to fix it if the issue persists after getting the July 9 update.

So, I confirmed that my weird issue with the inverted colors was introduced by the new Switch I introduced into the chain. I should have suspected it right away, its my fault for making so many changes so close to each other, its something I am normally careful to avoid doing, but I was pulling my hair out trying to solve a different issue that the switch fixed for me, and I just didn't think the switch would cause colors to randomly invert on only a section of my screen, but it turns out it definitely can do that, lol. Anyways I swapped out the HDMI Switch with a replacement and its been fine ever since.

And I since reinstalled the KB5039299 on my PC, and it definitely fixed the Checker-boarding issue that this thread addresses! I think we are golden! At least Microsoft was finally able to fix a problem they caused, sometimes they aren't capable of even doing that.

I appreciate your help @FlyingScot_TDP ! Have a good one!

 

[Sora]

Want to hear a joke?

Mozilla had early reproductions of this issue back in 2019, but only when using WebCompositor, a simple reproductive sample was created in 2022 that provoked the issue across all 3 GPU vendors / drivers, and never forwarded it onto microsoft for investigation.

 

[FlyingScot_TDP]

Want to hear a joke?

Mozilla had early reproductions of this issue back in 2019, but only when using WebCompositor, a simple reproductive sample was created in 2022 that provoked the issue across all 3 GPU vendors / drivers, and never forwarded it onto microsoft for investigation.

Hey, it's the world we live in now. U.I. and A.I. get priority over fixing bugs. At least, it feels that way of late.

 

[mclaren85]

Are we sure that this problem is not related to any hardware? My laptop, which also has nvidia chip runs without problem yet my desktop still shows checkered squares

 

[FlyingScot_TDP]

Are we sure that this problem is not related to any hardware? My laptop, which also has nvidia chip runs without problem yet my desktop still shows checkered squares

Is your desktop monitor running higher than 60Hz by any chance? If so, then there's your answer.

 

[mclaren85]

Is your desktop monitor running higher than 60Hz by any chance? If so, then there's your answer.

Good question. Currently it is 60hz. But when I increased it to 144hz, the problem also increases.

 

[FlyingScot_TDP]

Good question. Currently it is 60hz. But when I increased it to 144hz, the problem also increases.

I delayed updates until the end of July after I installed the preview patch, which did appear to fix the issue. I don't use the computer on a daily basis, but I did quite extensive testing to confirm that it was fixed. I was also able to use my second PC with the 11600K (specs are above in an earlier post) that did not have any sign of the issue (even without the patch) when using a 60Hz TV. As soon as I tested it on my 240Hz monitor at 144Hz, the checkerboarding appeared. You can see that from my earlier post above that it did take me a little while to provoke it. But it did happen. This leads me to believe that if we are talking about the same checkerboarding issue, it is definitely not your hardware. However, as I'm sure you are aware, if you have issues with your GPU's core or memory at the frequency/temp you are driving them at then you can have all kinds of artifacting, including random small squares, usually white or colored. Anyway, I just this minute installed the latest updates on the PC with the 240Hz monitor. I will check it soon to see if the preview patch that worked actually made it into the lasted final release (there was some confusion about that) and that the release itself did not break it. I will report back, if you would like to hear my findings.

 

[FlyingScot_TDP]

I just found time to check the original problem PC with the 240Hz monitor. Even after the latest Windows Updates the problem appears to remain fixed. That leaves me to test the 11600K PC that never had the optional preview patch installed.

 

[Dr. Dro]

I just found time to check the original problem PC with the 240Hz monitor. Even after the latest Windows Updates the problem appears to remain fixed. That leaves me to test the 11600K PC that never had the optional preview patch installed.

Issue has been gone for some time now, 11 24H2 seems completely immune

 

[mkdr]

I updated to Windows 24h2 (26100.1742) and the issue is back, where it was fixed on my 23h2 for months. Mostly triggered if you move mousr cursor over edge of windows and the entire screen starts to flicker black with windows vanishing and they pop back and forth.

 

[Sora]

have not seen any correlative reports to that measure.

 

[mkdr]

It is the same trigger I also had before. When you move mouse over windows edges or if mouse cursor changes or if you trigger a hoverbox or tooltip or animation, for example mouse movement over icons inside Chrome, the issue gets triggered. Now it is not inside the app but for all windows. For example having 5 Firefox windows open, you move mouse cursor over edges and have a video playing at the same time, suddenly all elements on the screen flicker black and back, also the taskbar. It happens that it gets stabalized again if you move mouse back from the edge or element, or the flicker gets faster and then Explorer crashes that you have just a black screen. Might also be a new issue with DWM in 24h2.

 

[Sora]

It is the same trigger I also had before. When you move mouse over windows edges or if mouse cursor changes or if you trigger a hoverbox or tooltip or animation, for example mouse movement over icons inside Chrome, the issue gets triggered. Now it is not inside the app but for all windows. For example having 5 Firefox windows open, you move mouse cursor over edges and have a video playing at the same time, suddenly all elements on the screen flicker black and back, also the taskbar. It happens that it gets stabalized again if you move mouse back from the edge or element, or the flicker gets faster and then Explorer crashes that you have just a black screen. Might also be a new issue with DWM in 24h2.

this is on the known issues list for 24h2, the directcomposition bug has not returned however.

 

[mkdr]

this is on the known issues list for 24h2, the directcomposition bug has not returned however.

you have a bug report for this? it is still happening for me on 26100.2161

 

[Martin007]

3. Change API to anything other than Default and DX11. I highly recommend to choose OpenGL because it is the best option for NVIDIA GPUs.

Changed to opengl but still see the the squares in Chrome for any dark/black area of the picture in HDR mode

 

[Sora]

Changed to opengl but still see the the squares in Chrome for any dark/black area of the picture in HDR mode

then you're not seeing this issue

 

[Martin007]

then you're not seeing this issue

No I see it in black/dark area "checkered squares"