Bug 511053 - Blur effect changed expected behavior after plasma 6.5 update
Summary: Blur effect changed expected behavior after plasma 6.5 update
Status: RESOLVED DUPLICATE of bug 510818
Alias: None
Product: kwin
Classification: Plasma
Component: effects-various (other bugs)
Version First Reported In: 6.5.0
Platform: Arch Linux Linux
: NOR minor
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-24 21:26 UTC by wicekwiacek
Modified: 2025-10-24 22:12 UTC (History)
2 users (show)

See Also:
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. (1.82 MB, image/png)
2025-10-24 21:28 UTC, wicekwiacek 		Details
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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 ***