Bug 476325

Summary:	Blur glitches appearing again in wayland with Nvidia GPU
Product:	[Plasma] kwin	Reporter:	Leonardo Ponti <leo02yt>
Component:	wayland-generic	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	xaver.hugl
Priority:	NOR
Version First Reported In:	5.27.9
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Picture of the glitch (whenever i try and use spectacle, the glitch disappears)

Description Leonardo Ponti 2023-10-30 12:34:08 UTC

Created attachment 162727 [details]
Picture of the glitch (whenever i try and use spectacle, the glitch disappears)

SUMMARY
***
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See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

noticing the same glitch as Bug 455526, marked as solved. not finding anyhing remotely recent about this glitch, decided to open a report. these glitches do not appear using Xorg.

STEPS TO REPRODUCE
1. Open konsole
2. Enable blur in Konsole
3. Move cursor over konsole window

OBSERVED RESULT
Blur effect glitches, notably a dark square following cursor movement.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: EndeavourOS
(available in About System)
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.111.0
Qt Version: 5.15.11

ADDITIONAL INFORMATION
Nvidia 1080 GPU, i can reproduce it on blurred dolphin as well.

Comment 1 Zamundaaa 2023-10-30 17:37:39 UTC

It's fixed in Plasma 6. The fix is sadly too big to backport it to 5.27

*** This bug has been marked as a duplicate of bug 455526 ***