https://bugs.kde.org/show_bug.cgi?id=455759
Bug ID: 455759
Summary: Present Windows effect has display scaling issues when
displays have different display scales in Wayland
Product: kwin
Version: 5.25.1
Platform: Other
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: effects-present-windows
Assignee: kwin-bugs-n...@kde.org
Reporter: wolfendea...@gmail.com
Target Milestone: ---
SUMMARY
When using multiple displays with different, fractional display scales in
Wayland, the display(s) with the lower scale factor have scaling artifacts as
if it were using the higher fractional scaling.
STEPS TO REPRODUCE
1. Use a Wayland session
2. Use multiple displays
3. Set the display scaling on one display to 100% and another to 125%
4. Activate the Present Windows effect (Ctrl+F9 or Ctrl+F10)
OBSERVED RESULT
The scaling on the display with the 100% scaling looks really bad (as if it
were at 125% scaling without aliasing)
EXPECTED RESULT
The scaling on each display is correct
SYSTEM INFO
Operating System: Arch Linux
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5
Kernel Version: 5.18.5-arch1-1 (64-bit)
Graphics Platform: Wayland
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