Running two 4K monitors at 240 Hz,
I have black-screen freezes of both monitors for about 10 to 15 seconds at startup of Windows and startup of games which start in exclusive fullscreen mode.
Switching from and to games running in exclusive fullscreen mode by alt-tabbing or closing the game also triggers the black-screen freeze.
It really is annoying.
This issue is happening if at least one monitor is using DSC on the NVIDIA dGPU.
If I disable DSC on one monitor - so it runs at 4K 120 Hz and the other one runs at 4K 240 Hz - the issue is still present but the black-screen freezes are shorter.
If I connect one monitor running at 4K 240 Hz to the AMD iGPU and the other one still connected to the NVIDIA dGPU also running at 4K 240 Hz, the issue does not occur.
This is not really a viable workaround as this intruduces stutters on both monitors when playing video on the screen which is connected to the iGPU.
Disabling âHardware-accelerated GPU schedulingâ in
Windows Settings â System â Display â Graphics â Advanced graphics settings
and rebooting seems to fix it.
After making sure the black-screen freezes are not occurring anymore, i enabled it again and rebooted.
Since the toggling i do not have any problems with black-screen freezes anymore.
I would like to clarify that only those black-screen freezes when alt-tabbing from and to exclusive fullscreened games do not occur anymore.
The black-screen freezes are still occuring at startup of Windows and everytime the monitor-configuration changes - like turning displays off or on.
As thesword53 already mentioned, this does not occur in Linux.
@nvidia_user_1234
This is a long-standing issue which has been known for years - this very forum and also other forums are full of posts from users which state the same issues.
When can we expect a fix for this long-standing issue?
@MarkusHoHo Can you please give us an update? As mentioned before, the DSC bug is a very well known and documented issue by the community for ages.
How to reproduce:
1- Have any monitor with Display Stream Compression (DSC) enabled.
2- Open any application in Exclusive Fullscreen.
3- Alt-tab out of the application.
Thereâs a 3 to 10 second black screen wait. This issue does not happen on AMD Graphics Cards, which makes it obvious this is an NVIDIA issue.
Hardware that i reproduced this on:
AW2725DF 1440p360 Monitor (DSC enabled and canât be turned OFF)
RTX 4090 using the latest 566.36 Driver
I tried the 571.96 CUDA driver and I still have black screens and freezes on Windows and now with 570.86.10 CUDA drivers on Linux I have black screens but no freeze. Back screens seem to be caused by VRR as 570.86.10 drivers now supports VRR on multiple monitors on Linux but freezes are only caused by DSC on Windows.
I really do not know what else to add. Whether this is a well documented issue or not and whatever our internal QA and engineering is doing about it, there is nothing I can share right now.
I have the same exact problem with an AW2725DF(2560p 360hz) and an LG ULTRAGEAR (1080p 144hz)
It freezes after entering the desktop, when I enable of disable HDR, when I alt-tab from a fullscreen game, It also freezes when I open the Display settings and HW accelerated applications ( steam, discord, games).
To add to this, it seems that lowering the second display refresh rate to 60hz seems to alleviate the freezes duration. I also noticed that windows 11 update KB5049622 seems to make things worse, increasing the number of hang ups especially the ones that occurs when opening games and HW accelerated Games.
Now with the 572.83 driver, the issue is even worse than before. I now have black screens in addition to freezes at startup. Any update ? I tested those screens with a Laptop with Intel integrated graphics and it has no issues.
I set all my screens to 60 Hz and disabled G-Sync and I still have freezes when I open display settings, when I change screen resolution or when I wake my PC from sleep. I even tested without the Alienware display and I still have the issue, it just fixes black screen when I alt-tab in exclusive fullscreen. When this issue will be fixed? Itâs really annoying that Nvidia drivers canât handle more than 1 screen properly. Those screens work perfectly with my professional laptop which has Intel graphics.
Same here but with a single 4k@240Hz monitor.
I have such a freezes with and without G-Sync. The only thing that seems to help is disabling DSC in my monitorâs OSD.
Whatâs interesting:
Without DSC, the max resolution that I can select through DP1.4 is 4k@120Hz YCbCr422 10-bit. If I turn off DSC - everything runs smoothly. If I enable DSC - I experience these weird stutters. Altough, DSC shouldnât be enabled at this resolution, it seems to be on.
Also, at 4k@240Hz I have random BSODs only in games with (always the same) bugcheckcode of 0x124 with parameter 0x10. I didnât test it at other resolutions cuz itâs too random and can take really long to happen. With DSC disabled I couldnât replicate the issue.
We are 6 months later and still no fix or proper response from Nvidia staff. I will describe clearly the issue.
Previously I was using MSI Gaming Intelligence, which is a program to manage the MSI screen (2560x1440 144 Hz). When the program starts at startup, my PC freezes as in this first video Black screen and system freezes when I enable DSC, 10 bits HDR and VRR - #3 by thesword53, so I removed it but this didnât solve the problem because, now, my PC freeze once randomly later when I open any program and always when I open display settings. The only way to remove freeze is to disable or disconnect my Alienware AW2725DF screen. If I use this screen, even if itâs the only screen connected to the computer and the refresh rate is set to 60 Hz (no DSC) and G-sync disabled, my computer freezes. If I wake up my PC from sleep or from screen saver my PC will later freeze again randomly if I start an application.
May I have any update about this issue? I would like to use use my without have a stuttery mess PC. If donât fix your driver or even consider this this issue the RTX 2080 SUPER will be my last GPU from Nvidia.
Only present when using DP1.4 + DSC (didnât test DP2)
Any other settings (like G-Sync) seem to have no effect on this
Issue is NOT replicatable when using HDMI2.1 + DSC
Stutter duration seems to be depended on CPU âspeedâ
Three independent PCs were tested:
R5 3600 + 1660S
R7 5800X + 4060
14700KF + 4080
I also tried mix-matching components (between first two) and the behaviour is completely the same.
I've contacted NVIDIA Support regarding this issue
I spent with NVIDIA Support Team a couple of days trying various troubleshooting steps to convience them that this is a software bug. In the end they forwared me to MSI as both GPUs (4060 and 1660S) are from MSI. MSI have confimed that this is a software bug, so I contacted NVIDIA again. At this time NVIDIA support said that theyâre âescalating this case to our higher department for further reviewâ and I should wait for the email reponse. The date was 13.06.2025 (DD.MM.YYYY).
After 12 days I didnât get a response so I contacted them again to ask the status of the ticket. They responded that I should wait moreâŠ
Itâs been 19 days now since the ticket was âescalatedâ and still no response.
Today I sent them an additional information I got from testing system on 14700KF (namely that the issue is not replicatable over HDMI 2.1).
UPD (03.07.2025):
Finally got a response!
They say that theyâre investigating some DP display related issues.
Hope this gets fixed!
During my âresearchâ Iâve also noticed that If I underclock my R5 3600 to 1GHz, the duration stutters increase up to 600ms from ~200ms at stock.
@MarkusHoHo, do you have any comments/updates on this?