Bug 421855

Summary: After changing various settings, panel flickers and only the border of windows is rendered until they are moved or resized
Product: [Plasma] kwin Reporter: Patrick Silva <bugseforuns>
Component: compositingAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: nate
Priority: HI    
Version First Reported In: git master   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 5.24
Sentry Crash Report:
Attachments: screen recording

Description Patrick Silva 2020-05-21 10:07:34 UTC
Created attachment 128656 [details]
screen recording

SUMMARY
The same occurs after I set "Large icons" task switcher in Task Switcher kcm.
Watch the attached screen recording please.

EXPECTED RESULT
panel should not flicker, windows should always be fully rendered

SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.19.80
KDE Frameworks Version: 5.71.0
Qt Version: 5.14.2
Kernel Version: 5.3.0-45-generic
OS Type: 64-bit
Processors: 4 × Intel® Core™ i3-3110M CPU @ 2.40GHz
Memory: 7,7 GiB of RAM
Graphics Processor: Mesa DRI Intel® Ivybridge Mobile
Comment 1 Nate Graham 2020-06-10 21:25:21 UTC
I can reproduce this issue. Also happens when you switch the Task Switcher style. The flickering gets faster if you move your mouse faster, too! With compositing turned off, I don't see it anymore.
Comment 2 Nate Graham 2022-01-21 05:16:01 UTC
This has been fixed in Plasma 5.24