https://bugs.kde.org/show_bug.cgi?id=502529
Bug ID: 502529
Summary: Shading is almost working, but creates artefacts in
shaded state, where usually the window shadow is
placed, but window shadow is disabled
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Window shading
Assignee: kwin-bugs-n...@kde.org
Reporter: h...@urpla.net
Target Milestone: ---
SUMMARY
Window shading is almost working correctly, but creates artefacts in shaded
state, where usually the window shadow is placed, but window shadow is disabled
altogether, compositing is enabled, but apps may override.
The artefacts expose some formerly displayed screen content, therefore it seems
to be a redraw issue. Some may flicker, other not.
STEPS TO REPRODUCE
I configured my systems to shade the window with a double click on the window
bar.
Enable compositor
Note: NVIDIA graphics driver 570.133.07 (probably reproducible with other
hardware as well)
disable window shadow (but the glitch is even stronger with window shadow
enabled)
Shade a window, hopefully observe the glitch
OBSERVED RESULT
Will attach a short video, glitch appears since some time
EXPECTED RESULT
No such artifacts
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20250403
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.2
Kernel Version: 6.14.0-6-preempt (64-bit)
Graphics Platform: X11
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 62.3 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3060
Manufacturer: ASUS
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