https://bugs.kde.org/show_bug.cgi?id=511611
Bug ID: 511611
Summary: [Bug] Occasionally, kwin_wayland failing to request
access to input devices from logind, resulting in
inaccessible mouse and keyboard in its graphical
session.
Classification: Plasma
Product: kwin
Version First 6.5.0
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: input
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
Occasionally, kwin_wayland failing to request access to input devices from
logind, resulting in inaccessible mouse and keyboard in its graphical session.
This happens not every login, just at random login attempt, both at the clean
boot or re-login. Mouse and keyboard are inaccessible in this case due to
permission request failing (btw, mouse pointer is invisible, but it is not the
problem with drm and video driver in this situation. so software cursor doesn't
help). And when that happens, I can't interact with my PC though keyboard.
keystrokes are blocked and the ways to deal with it is wait for screen off and
sysrq-ing virtual console and login to it or hit ctrl+alt+del to reboot system.
At the time, when error happened, this log line appears in journald:
Failed to activate /org/freedesktop/login1/session/_32 session. Maybe another
compositor is running?
There is no another compositor runnging and I using sddm greeter with Wayland
backend. This error didn't happen in 6.4.5 or even 6.4.91 and appeared with
Plasma 6.5.0 release.
STEPS TO REPRODUCE
1. Login from sddm to Plasma Wayland session.
2. Expect no possibility for interaction with interface (only ctrl+alt+del or
wait for screen of and sysrq-ing)
OBSERVED RESULT
No possibility for interaction with interface (only ctrl+alt+del or wait for
screen of and sysrq-ing). (happens not every time)
EXPECTED RESULT
Normal interraction with interface (which happens not every login)
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Arch Linux (kernel 6.17.7, 6.12.57-lts)
KDE Plasma Version: 6.5.0-6.5.1
KDE Frameworks Version: 6.19.0
Qt Version: 6.10.0
ADDITIONAL INFORMATION
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