Bug 511053

Summary:	Blur effect changed expected behavior after plasma 6.5 update
Product:	[Plasma] kwin	Reporter:	wicekwiacek
Component:	effects-various	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	minor	CC:	wicekwiacek, xaver.hugl
Priority:	NOR
Version First Reported In:	6.5.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	On the left is the post-update state with a transparent and blurred terminal window open. Two screenshots on the right are the expected state.

Description wicekwiacek 2025-10-24 21:26:20 UTC

SUMMARY
After rebooting after Plasma 6.5 upgrade all of my blur effects on the desktop had their contrast settings changed, with no apparent way of reverting said changes in the system config.

STEPS TO REPRODUCE
1. Configure custom blur parameters in plasma 6.4x
2. Upgrade to plasma 6.5

OBSERVED RESULT
Change in the way blur is displayed

EXPECTED RESULT
Same behavior as pre-upgrade/config to revert the change

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.17.4-arch2-1 (64-bit)
KDE Plasma Version: 6.5.0
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0

ADDITIONAL INFORMATION
Issue experienced on Wayland. Attached screenshots from before and after update. No changes in blur config were made.

Comment 1 wicekwiacek 2025-10-24 21:28:56 UTC

Created attachment 186112 [details]
On the left is the post-update state with a transparent and blurred terminal window open. Two screenshots on the right are the expected state.

Comment 2 Zamundaaa 2025-10-24 22:12:35 UTC


*** This bug has been marked as a duplicate of bug 510818 ***