https://bugs.kde.org/show_bug.cgi?id=489396
Bug ID: 489396
Summary: FPS drops vastly when switching virtual desktops with
many opened windows so that the panel floats or
de-floats
Classification: Plasma
Product: kwin
Version: 6.1.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: performance
Assignee: kwin-bugs-n...@kde.org
Reporter: pos...@posteo.eu
Target Milestone: ---
STEPS TO REPRODUCE
1. Two Virtual Desktops + a floating panel
2. On one desktop open many windows, the more, the stronger is the effect.
18 windows were a good number for me to make it very obvious. This may depend
also on your hardware.
Let at least one window touch the panel so that it de-floats.
3. Switch between the two virtual desktops
OBSERVED RESULT
The framerate drops to < 10 for me.
EXPECTED RESULT
The framerate stays around 60 fps.
SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20240627
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.2
Kernel Version: 6.9.6-1-default (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 5900X 12-Core Processor
Memory: 31.2 GiB of RAM
Graphics Processor: AMD Radeon RX 580 Series
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