Bug 447702

Summary:	kwin-5.23.4 results in white/gray screen when compositing turned on
Product:	[Plasma] kwin	Reporter:	Dave Flogeras <dflogeras2>
Component:	compositing	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED UNMAINTAINED
Severity:	normal	CC:	nate
Priority:	NOR
Version First Reported In:	5.23.4
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Dave Flogeras 2021-12-30 16:28:23 UTC

SUMMARY

Since upgrading to kwin-5.23.4 on Gentoo, logging in results in a white/gray screen.  If I move the mouse around I can tell it changes shape when it passes over windows from my saved session.  If I disable compositing with the keyboard shortcut, I can see the desktop again.  This setup worked well with kwin-5.22.5.

This seems independent of plasma, trying LXQT with kwin results in the same.  This is an old 32bit Dell D820 laptop, with nvidia quadro nvs 110M.  I'm running a 4.19 LTS kernel with nouveau.  The system is otherwise up to date with the exception of the older kernel series.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: gentoo
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.88
Qt Version: 5.15.2+ (Gentoo packages)

Comment 1 David Edmundson 2023-09-06 10:38:45 UTC

This bug was reported against an outdated version of KWin. We have made many changes since the. 
If the issue persists in newer versions can you reopen the bug report updating the version number.