https://bugs.kde.org/show_bug.cgi?id=440705
Bug ID: 440705
Summary: (Wayland) Mouse getting stuck between monitors when
left monitor is scaled by certain scale factors
Product: kwin
Version: 5.22.4
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: sjurberengal+...@gmail.com
Target Milestone: ---
SUMMARY
I have two monitors, one 24" 1080p and one 27" 1440p, with the 1080p monitor
being on the left side and the 1440p being in front of me. I use kwin's
individual monitor scaling on Wayland so the physical size of windows line up.
With scaling of the left (1080p) monitor at 100% I can freely move the mouse
between the two screens without it getting stuck on the dividing line, but if I
change its scaling to 85% the mouse gets stuck on the dividing line unless I
move it at high speed. In the monitor layout they are both snapped right next
to each other with no gap between.
I tried other scale factors from 75% to 115% and found the mouse only getting
stuck on 80%, 85% and 110% scaling.
STEPS TO REPRODUCE
1. Connect a 1080p monitor and a 1440p monitor
2. In System Settings -> Display and Monitor -> Display Configuration: put the
1080p monitor to the left of the 1440p monitor, with the edges lined up
perfectly (snapped together)
3. Change the scaling of the left monitor
4. Move the mouse between the two monitors at different speeds
OBSERVED RESULT
With the left monitor at 100% scale the mouse cursor moves from one screen to
the other regardless of the speed it's moved at. At 85% scale the cursor gets
stuck at the edge of the screen when it's moved slowly.
EXPECTED RESULT
The mouse should move smoothly between monitors regardless of scaling and mouse
speed.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Graphics platform: Wayland
ADDITIONAL INFORMATION
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