https://bugs.kde.org/show_bug.cgi?id=474825
Bug ID: 474825
Summary: Dragging a window in Present Windows/Overview with
both touchscreen and touchpad halts kwin
Classification: Plasma
Product: kwin
Version: 5.27.8
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: effects-window-management
Assignee: kwin-bugs-n...@kde.org
Reporter: unblended_icing...@simplelogin.com
Target Milestone: ---
SUMMARY
In Present Windows/Overview, if you drag a window using both touchscreen and
touchpad (maybe mouse also works), the window glitches and the whole interface
is unresponsive. After a while the screen goes blank. Alt + Space won't open
KRunner in this case.
A coredump doesn't generate and nothing shows up within KDE Crashed Processes
Viewer, so a crash report isn't available. But the issue is reliably
reproducible.
STEPS TO REPRODUCE
1. Use a laptop with touchscreen
2. Use KDE Plasma Wayland session
3. Open any window (openSUSE's Welcome page in my case)
4. Activate Present Windows effect
5. Drag that window using both touchscreen and touchpad
OBSERVED RESULT
The dragged window glitches, the whole interface is unresponsive. After a while
the whole screen goes blank. Alt + Space doesn't open KRunner. TTY console is
still accessible.
EXPECTED RESULT
The dragged window should follow either touchscreen input or touchpad input
(given a stable priority), without halting the whole interface.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma:
(available in About System)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
Wayland session.
Intel Graphics.
Microsoft Surface device.
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