https://bugs.kde.org/show_bug.cgi?id=439956
Bug ID: 439956
Summary: windows have parts cut out when focused
Product: kwin
Version: 5.22.3
Platform: Gentoo Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: kwin-bugs-n...@kde.org
Reporter: saund...@pagpaintball.com
Target Milestone: ---
SUMMARY
sometimes with firefox in the foreground and i focus/restore konsole it will
not draw the full konsole window properly. it will look like a box-shaped chunk
was cut out of it. i cannot reliably recreate this. somewhat similiar effect
when you play a video fullscreen with mpv (also hw accel) on the same desktop,
it closes, firefox will momentarily be a black window before it refreshes.
STEPS TO REPRODUCE
1. firefox in foreground
2. restore a minimized konsole which overlays part of firefox
3. a box sized chunk will be cut out of konsole, it does not match the position
it overlays firefox nor the size.
OBSERVED RESULT
konsole window drawn with square chunk missing.
EXPECTED RESULT
konsole window drawn properly.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.22.3
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
desktop effects enabled, nvidia gtx 980, firefox hw accel enabled.
if I catch it doing it again I'll take a photo with my phone. it's rare but it
has happened recently. it seems to only happen with konsole.
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