Screen flickering after enabling vulkan.

[FatalTouch]

My screen seem to flicker after loading up the game every ~15 seconds or so on average.

This is the dx-diag.
DxDiag.txt

[danginsburg]

Can you post your in-game video settings? I'm particularly interested in whether you are running Exclusive Fullscreen/Borderless Windowed/Windowed, whether vsync is enabled, and at what resolution. If you are able to post a video or screenshot of the corruption that would be helpful too. Thanks.

[jesseylin]

I'm getting the same issue on Arch Linux with a GTX 760 using Nvidia 364.19 drivers. I have vsync on and am running at 1920x1080 in "desktop-friendly fullscreen" (whatever that means, it's not borderless window). The screen flickers less often when I disable vsync (EDIT: actually it's about the same).

[FatalTouch]

Hey,

These are the video settings

and this is a video of the problem.

[scott-rothman]

I'm having this issue as well

Windows

GTX 670
Intel i5-3450

Fullscreen at 2440x1440

[danginsburg]

@dawnofdusk Your issue on Linux is a known issue that NVIDIA is looking into. The other report is on Win10 and is something different.

@FatalTouch Thanks for the additional info, I see the flicker at around the 11 second mark. We'll see if we can repro here.

[Rastheraz]

Same issue. Windows 10, GTX 770, i5-2500k, 8GB ram, Borderless Window.

[vadimsvs]

The same with me. Win7 64bit, 14GB RAM, GTX 770 4gb, core i7 960 3.2 ghz.
Bordrerless window, max setting, vsync off. Latest nvida drivers 368.22

60hz benq monitor.

I have played 4 games already + 1 custom game.

[KaeLL]

Flickers and stutters.
Proof: https://www.youtube.com/watch?v=3ij1NBViEaU
DxDiag.txt

[Ryano1904]

I am also have a flickering issue. Windows 10 64 bit, 6 GB of ram, GTX 760 2gb, 1045t 2.7 ghz.

As far as I can tell changing video settings has no impact what-so-ever.

[vidakDK]

Same, flickers and intensive stutters. FPS around the same, perhaps a bit higher.
Windows 10 64bit, 8GB ram, GTX 750ti, i7 4510U@2GHz, same for both Borderless window and exclusive full screen.
Played 2-3 games and watched several.
DxDiag.txt
EDIT: Vulkan itself works, loads properly as checked in vconsole, and also checked by vulkan_memgr_print (output attached)
vulkan_memgr_print.txt

[rose0688]

Everything was fine but after installing the newest update for Nvidia 970M (Overwatch associated) I have stutters, flickering and higher than normal RAM usage (1,6gb vs ~1gb before). Setting are all maximum.

Console Log :
console.txt

EDIT: NVIDIA newest driver has something to do with this - after rolling it back stuttering is way smaller and flickering has disappeared but fps is now at about 50-70 vs 90-100 before. RAM usage is at 1.8Gb now

[danginsburg]

@FatalTouch I have repro'd this on Win10 x64 GT 760 NVIDIA 365.19. You appear to be on Win10 x64 GTX 670 365.19 as well. Also happening on NVIDIA 368.22. Turning off shadows seems to help somewhat (r_dota_shadows 0) although there is still some flickering. We will work with NVIDIA on this.

[KeeperYC]

same here,
Win7 64
resolution :1920x1080
full screen
vsync off
GTX970
seems like game UI flickering the most

[randomdota]

experiencing flickers every 2 seconds, win 8.1 64bit, 1600x900 resolution borderless, vsync off, gtx 765m

[Kutomore]

Flickers, stutters, every couple seconds, GT 740m

[danginsburg]

I believe I have fixed the flickering bug. It will be in the next Dota 2 Update. I'll post here when it ships so you can check whether it fixed the issue for you.

[KaeLL]

I believe I have fixed the flickering bug. It will be in the next Dota 2 Update. I'll post here when it ships so you can check whether it fixed the issue for you.

Don't make us wait :/

[Stylesy]

I'm still flickering after the update.

Here is my information:

DxDiag.txt.

Console also states that bad textures have been spotted (even though Vulkan loads up properly):

[danginsburg]

I am hearing from others that this has not fixed it for them as well. If you are still seeing the flickering if you could post your specs and ideally a video to make sure what you describe as flickering is what we are looking at. I fixed an issue that resolved the flickering on my two Kepler test systems with GTX 760 and GT650M, but clearly it did not fully resolve it. I can assure everyone we are looking at it and NVIDIA is helping too. Thanks for your patience.

[PacificRimming]

Win 8.1
Nvidia 750m
Windowed Borderless
1920 x 1080
no difference with Vsync on or off
latest Nvidia driver 368.22

No difference after the 28.05. update, mostly the UI is still flickering. Rarer flickering on loading screens and when browsing the In-Game tabs.

Looks the same as in the earlier video posted. https://www.youtube.com/watch?v=3ij1NBViEaU

[arlyqwe]

Same issue. win 7 sp1, Nvidia 640M, fullscreen 1366x768, no difference with Vsync on or off, latest nvidia driver

[DoulosTrieste]

Prior to this patch, I experienced flickering with 368.22 but not with 365.19 . No difference with Vsync on or off.

Win 10 x64
650M
Borderless 1920x1080 (native)

[randomdota]

@danginsburg , still experiencing this issue, just flickers every 2 seconds like a lamp.

, win 8.1 64bit, 1600x900 resolution borderless, vsync off, gtx 765m.

im available for teamviewing if it is needed. tried recording vid but OBS game/window capture shows all black with vulcan enabled and only recordable with vulkan off, pretty weird interaction.

[danginsburg]

With the help of NVIDIA we believe we have finally found the root cause of this bug. NVIDIA is going to fix it in a future driver release, but in the meantime I have added a workaround to rendersystemvulkan. It will be in the next Dota 2 update. If you still think you see flickering, please post a video of what you are seeing because it may be another bug we have not yet solved. Thanks everyone for your patience, this was a very difficult one to track down.

I will post here with the Dota 2 update when the fix ships.

[danginsburg]

The workaround is in the 5/31 update. Please give it a try hopefully it is truly fixed this time.

[titorist]

I still got flickering issue and fps drop...
this is my spec :
win 8.1 64bit.
gt650m
1344x768
vsync on n off doesnt matter.

even in today dota2 update i still got the same issue,

[danginsburg]

@titorist It is not clear from your screenshot or description what you are calling flickering. I believe this issue has been fixed. I know there are other visual artifacts tracked by other bugs such as #12 and #106 which I believe to be other issues with scaleform that we are still investigating. This particular issue was about flickering as shown in @FatalTouch's video which impacted Kepler GPUs. If anyone is still seeing that, please let me know and post a video. Closing for now.