Bug 511153 - "Failed to find a working output layer configuration" logs when using virtual output
Summary: "Failed to find a working output layer configuration" logs when using virtual...
Status: NEEDSINFO WAITINGFORINFO
Alias: None
Product: kwin
Classification: Plasma
Component: core (other bugs)
Version First Reported In: 6.5.0
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-26 12:57 UTC by Błażej Szczygieł
Modified: 2025-12-31 19:26 UTC (History)
1 user (show)

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

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Description Błażej Szczygieł 2025-10-26 12:57:30 UTC 
SUMMARY
It works, but I see error messages in logs every second when virtual screen is added in screen share dialog (e.g. in OBS).

STEPS TO REPRODUCE
1. Open screen sharing dialog in OBS.
2. Select new virtual output.
3. See logs (journalctl -f).

OBSERVED RESULT
Every second:
```
kwin_core: Failed to find a working output layer configuration! Enabled layers:
kwin_core: src QRectF(0,0 1920x1080) -> dst QRect(0,0 1920x1080)
```

EXPECTED RESULT
No errors in logs.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.5.0-git (585c6f80ec47e844e349e348836018b1617cc610)
KDE Frameworks Version: 6.19
Qt Version: 6.10.0

ADDITIONAL INFORMATION
kwin 6.5.0 and 6.5.0-git (585c6f80ec47e844e349e348836018b1617cc610)
Comment 1 TraceyC 2025-12-31 18:46:19 UTC 
Thanks for the bug report. I'm not able to reproduce this in Plasma built from today's git-master. I also see no other reports of this error.

Is this still happening on your system? If so, please share the output of kinfo

Thanks.
Comment 2 Błażej Szczygieł 2025-12-31 19:26:54 UTC 
It is already fixed, I think the issue was not linked to the commit.