Bug 457960

Summary: Flashing retangles when using transparency and blur
Product: [Applications] konsole Reporter: postix <postix>
Component: generalAssignee: Konsole Developer <konsole-devel>
Status: RESOLVED DUPLICATE    
Severity: normal CC: postix, xaver.hugl
Priority: NOR    
Version: 22.04.3   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: Screen recording
kWin Debug Information

Description postix 2022-08-16 14:36:21 UTC
Created attachment 151356 [details]
Screen recording

STEPS TO REPRODUCE
1. Open Konsole
2. Choose Breeze color scheme
3. Set transparency to 25%
4. Check "Blur Background"
5. Open a context menu, which covers part of Konsole's window
6. OR open a menu item like  "Help"
7. OR open a window like "Help --> About"

OBSERVED RESULT
Behind the opened (context) menu / window a darker flashing rectangle appears.
Please see the screen recording.i

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20220813
KDE Plasma Version: 5.25.4
KDE Frameworks Version: 5.96.0
Qt Version: 5.15.5
Kernel Version: 5.19.0-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: AMD Radeon RX 580 Series
Comment 1 postix 2022-08-16 14:38:41 UTC
If I do not move the mouse at all, the rectangle flashes in some rhythm: short -- long -- short -- long -- ...
If I move the cursor, the flashing becomes much faster.
Comment 2 postix 2022-08-16 14:39:22 UTC
Created attachment 151357 [details]
kWin Debug Information
Comment 3 Zamundaaa 2022-09-12 19:03:50 UTC

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