https://bugs.kde.org/show_bug.cgi?id=446073
Bug ID: 446073
Summary: wrong mouse position when scaled inside SPICE virtual
machine
Product: kwin
Version: 5.23.3
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: lilyd...@gmail.com
Target Milestone: ---
SUMMARY
When I'm running the Plasma Wayland session in a QEMU / KVM virtual machine via
the SPICE protocol and the display is scaled, the mouse position is wrong.
STEPS TO REPRODUCE
1. Run the virtual machine and log in Plasma Wayland session
2. Set the scale factor to 200% in settings and apply
3. Move around and click
OBSERVED RESULT
When the mouse cursor is shown at coordinate (x, y), the input event is
actually happening at (2x, 2y), i.e. goes too far to the right and bottom.
EXPECTED RESULT
The input event should happen where the cursor is shown.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma
KDE Plasma Version: 5.23.3
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
It is fine with Plasma X11. It has a totally different issue with wlroots
compositors (cursor upside down instead of scaled away).
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