Bug 508068 - Taskbar flickering while triggering quick tile animation
Summary: Taskbar flickering while triggering quick tile animation
Status: RESOLVED UPSTREAM
Alias: None
Product: kwin
Classification: Plasma
Component: general (other bugs)
Version First Reported In: 6.4.4
Platform: CachyOS Linux
: NOR minor
Target Milestone: ---
Assignee: KWin default assignee
URL: https://www.youtube.com/watch?v=uyv0T...
Keywords: wayland-only
Depends on:
Blocks:
 
Reported: 2025-08-09 22:40 UTC by Alexander Hendrich
Modified: 2025-08-12 16:18 UTC (History)
3 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:


Attachments
kinfo (18.65 KB, image/png)
2025-08-12 00:02 UTC, Alexander Hendrich
Details

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Description Alexander Hendrich 2025-08-09 22:40:59 UTC
I am using an ASUS PG27AQDP 480 hz Monitor and my taskbar is flickering on CachyOs KDE with the default screen settings. I have to set it like in the Attachement  to get rid of the flickering, but there is still light flickering overall.

CachyOs Bugreport:  https://paste.cachyos.org/p/9caa70e.log
Neofetch screen : https://ibb.co/Y41W18Rx
Comment 1 Alexander Hendrich 2025-08-09 22:50:27 UTC
Video about my issue: https://youtu.be/uyv0Tu6sp50
Comment 2 TraceyC 2025-08-11 22:20:55 UTC
Please run kinfo from terminal and paste the output into this report. 
Also, please attach the video directly to this report. Videos hosted elsewhere can be deleted or become unreachable.

Thanks.
Comment 3 TraceyC 2025-08-11 22:33:55 UTC
In the video, the System Settings window is being moved to the lower left corner of the screen
This triggers the quick tile animation for the lower left corner / left side as its being moved
While moving the System Settings window during this animation, the part of the panel not covered by the animation is flickering

I am not able to reproduce this on git-master or Fedora 42. I'll leave this open so others can try to reproduce.
Comment 4 Alexander Hendrich 2025-08-12 00:02:46 UTC
Created attachment 183977 [details]
kinfo
Comment 5 Alexander Hendrich 2025-08-12 00:05:42 UTC
(In reply to TraceyC from comment #2)
> Please run kinfo from terminal and paste the output into this report. 
> Also, please attach the video directly to this report. Videos hosted
> elsewhere can be deleted or become unreachable.
> 
> Thanks.

How can I add my video correctly, it says it is too big.
Comment 6 TraceyC 2025-08-12 16:02:44 UTC
(In reply to Alexander Hendrich from comment #4)
> Created attachment 183977 [details]
> kinfo

Please paste the text into a comment rather than add a screenshot of kinfo.

> How can I add my video correctly, it says it is too big.

You can use software like Handbrake to reduce the size of it
https://engagemedia.org/help/video-compression-step-by-step-handbrake-tutorial/

Thanks
Comment 7 Nate Graham 2025-08-12 16:18:58 UTC
This is an NVIDIA GPU issue, like virtually all the other weird random graphical glitches end up being.

Please report this issue to the NVIDIA folks, either by sending an email to linux-bugs@nvidia.com or making a post at https://forums.developer.nvidia.com/c/gpu-graphics/linux. It would be helpful to the NVIDIA developers if you could run nvidia-bug-report.sh and attach the resulting file in your report.

Thanks!