https://bugs.kde.org/show_bug.cgi?id=494245
Bug ID: 494245
Summary: Mouse speed feels much faster when screen is scaled on
wayland
Classification: Plasma
Product: kwin
Version: 6.1.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: wen...@gmail.com
Target Milestone: ---
SUMMARY
The mouse speed on kwin when scale is enabled doesn't match the speed on other
systems.
For example, if I uses 1920x1080 system, when I set the scale, the mouse
(physical one, not touchpad) feels moves much faster. And it is significantly
faster comparing to other OS (e.g. windows) or X11 on the same machine.
I have to use the mouse hardware dpi button to adjust back and force when
switching the system to get the same speed feeling. On other OS or X11, no
matter how the scale is changed, I don't feel the mouse speed is changed at the
same time.
STEPS TO REPRODUCE
1. Set scale to >100 (e.g. 125)
2. Move mouse
OBSERVED RESULT
Mouse is significantly move faster on scaled screen
EXPECTED RESULT
Mouse moves the same speed before the scale is enabled.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.6.0
Qt Version: 6.7.2
ADDITIONAL INFORMATION
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