Bug 456558

Summary:	[NVIDIA] Plasma UI elements periodically become visually corrupted
Product:	[Plasma] kwin	Reporter:	FPSUsername
Component:	general	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	irfan.alikhan, kde, nate
Priority:	NOR
Version:	5.25.2
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	UI elements get blurred

Description FPSUsername 2022-07-10 17:15:35 UTC

Created attachment 150516 [details]
UI elements get blurred

SUMMARY
***
NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols.
See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***
Whenever I use KDE for an extensive time, it sometimes can happen that the UI glitches out and everything becomes blurry. In the attachment you can see the top bar (blue blur), the application launcher and latte dock.
This can happen when the compositor is enabled or disabled.


STEPS TO REPRODUCE
1. Wait for it to happen. It often triggers for me when I press the meta key.

OBSERVED RESULT
UI elements get blurry and the PC is unusable.

EXPECTED RESULT
UI to work fine

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux with 5.18.10-xanmod1-1-haswell (64-bit)
(available in About System)
KDE Plasma Version: 5.25.2
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5

ADDITIONAL INFORMATION
EVGA GTX 960 SSC 4GB GPU running on latest proprietary nvidia drivers.
This issue exists for me at least since KDE 5.21 and Linux kernel v5.12.

Comment 1 Nate Graham 2022-07-13 19:15:32 UTC

NVIDIA-related. Not sure if it's their fault or our fault.

Comment 2 FPSUsername 2022-07-13 19:20:31 UTC

(In reply to Nate Graham from comment #1)
> NVIDIA-related. Not sure if it's their fault or our fault.

I haven't seen this happen on Gnome for example, but I haven't run Gnome long enough to see it happen.
I believe the best testing scenario would be to test it with another QT based DE, but it's a matter of time when it happens, it doesn't happen every day either, more like once a month.

Comment 3 irfan.alikhan 2022-12-15 18:28:22 UTC

I don't see this severe an issue, just with the bottom dock, when I have it set to appear/disappear on proximity of mouse, the entire lower section of the screen flickers with a translucent layer that sometimes disappears and sometimes persists.  Not critical, just distracting.  Nvidia 525.60.11, wayland.  otherwise, loving kde as usual, wayland is snappy!  thanks!

Comment 4 David Edmundson 2024-04-25 13:57:59 UTC

This is outdated and heavily driver dependent. Can you confirm if this is still can issue

Comment 5 FPSUsername 2024-04-25 14:12:07 UTC

(In reply to David Edmundson from comment #4)
> This is outdated and heavily driver dependent. Can you confirm if this is
> still can issue

Unfortunately I can not test this anymore. I changed the gpu to an amd rx6600 and that has not given me any issues in plasma 5 nor 6.

Comment 6 Nate Graham 2024-04-25 23:11:17 UTC

OK great, let's call it fixed.