https://bugs.kde.org/show_bug.cgi?id=448211
Bug ID: 448211
Summary: Sessions are breaking all the time when starting from
standby on Debian with Wayland - it shows a black
screen with "the screen locker is broken"
Product: kwayland-integration
Version: unspecified
Platform: Debian stable
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
Since I switched to Wayland on Debian11/KDE starting the computer from standby
often shows a black screen with the notice that one should use ctrl+alt+f2 and
loginctl unlock-session {id} (this text disappears before one can fully read
it). Doing so doesn't help (and running ctrl+alt+f7 shows a frozen
login-screen) but running pkill -KILL -u {username} does.
After running that command and pressing ctrl+alt+F(8 for example) in the login
screen a qemu user is shown again, even though I reran this
https://unix.stackexchange.com/a/663937/233262 as a workaround to at least hide
the user.
After pressing ctrl+alt+F(8 for example) to show to login screen after logging
the user out it shortly shows the error "Failed to start LSB: web-based
administration interface for Unix systems" before loading the login screen (and
I don't have webmin installed anymore). Moreover, since recently, the
VeraCrypt-mounted drive isn't showing as mounted in VeraCrypt anymore in the
GUI (but it's still mounted). No veracrypt process is running. Another thing
that's happening with these crashes is that the bashhistory file is only around
20kB large, everything else got removed (which means every time I restore the
history from the backups).
Related bug about troubleshooting and logs for Wayland problems:
https://bugs.kde.org/show_bug.cgi?id=447769
If this bug should be filed for kwin instead, please move it there.
(I do know that Debian11 doesn't use the latest version of KDE.)
Slightly more details and logs here:
https://unix.stackexchange.com/q/684498/233262
STEPS TO REPRODUCE
1. Switch to Wayland on Debian11/KDE
2. Use the system for a while (sometimes it takes days until this occurs again,
right after switching this occurred far more often than now)
OBSERVED RESULT
Session breaks with a black screen showing an error message for a time that's
too short to even read it
EXPECTED RESULT
Sessions shouldn't break.
And if they do there should be better error handling. If a black screen is
shown it should keep showing the error message and if possible also show ways
to solve the problem. Lastly, there should be guides on how to troubleshoot
problems like this and logs that help solve such issues.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Debian 11
KDE Plasma Version: 5.20.5
KDE Frameworks Version: 5.78.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
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