https://bugs.kde.org/show_bug.cgi?id=460971
Bug ID: 460971
Summary: Desktop freeze (when changing between virtual
desktops)
Classification: Plasma
Product: kwin
Version: 5.26.1
Platform: Ubuntu
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: 3809940...@gmail.com
Target Milestone: ---
SUMMARY
Context:
- Problem started after upgrading to Kubuntu 22.10 with KDE 5.26.1
- I am using "Switch desktop on screen edges" to switch between virtual
desktops seamlessly
- Problem occurs randomly, I couldn't detect a pattern yet
Clues:
When system is working:
- After the update switching to other desktop sometimes stops. Mouse is stuck
at the edge of screen instead of continuing to the next virtual desktop. To fix
this, I have to first go to the opposite virtual desktop. Then it gets unstuck.
This never happened before the update.
- Freezing is not time dependent. System is stable as long as mouse is not
used.
- Freezing is not load dependent. I can play 3D games without freezing.
When system is frozen:
- Cursor can be moved but can not click on anything
- System is operating normally in the background when freeze occurs (encoding
jobs, downloads continue as usual)
- I can CTRL+ALT+F2 to a terminal (but only once) and run commands including
rebooting the computer
Things I tried without an effect:
- Disabling the Compositor
- Disabling hardware acceleration in Firefox
STEPS TO REPRODUCE
1. Switching between virtual desktops with mouse with the following settings-
"Switch desktop on screen edges" - ENABLED
"Activation delay" - DISABLED
"Reactivation delay" - 1000 ms
OBSERVED RESULT
At some random point you are stuck in the current desktop with GUI frozen as
described above
EXPECTED RESULT
System switches to the next desktop when mouse cursor passes the boundary
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.10
KDE Plasma Version: 5.26.1
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 5.19.0-23-generic (64-bit)
Graphics Platform: X11
AMD Radeon RX 6600
Mesa 22.2.1
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