Bug 506821

Summary: On X11, sometimes lock screen is frozen and can't unlock; fix is to kill process kscreenlocker_greet
Product: [Plasma] plasmashell Reporter: demlak <kde-bugtrack-no-reply>
Component: Screen lockingAssignee: Plasma Bugs List <plasma-bugs-null>
Status: REPORTED ---    
Severity: grave CC: kdedev, nate
Priority: NOR Keywords: X11-only
Version First Reported In: 6.4.2   
Target Milestone: 1.0   
Platform: Arch Linux   
OS: Linux   
See Also: https://bugs.kde.org/show_bug.cgi?id=510205
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: buckstrace of kscreenlock greeter

Description demlak 2025-07-09 20:05:23 UTC
Created attachment 183098 [details]
buckstrace of kscreenlock greeter

SUMMARY


STEPS TO REPRODUCE
Hard to reproduce.. happens only sometimes..

OBSERVED RESULT
Screen is freezed on login screen

EXPECTED RESULT
should not be freezed =)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.15.4-arch1-1-znver3 (64-bit)
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
Grafics: X11

I don't have any knowledge about this.. a helpfull guy in #archlinux-de helped me to generate the bucktrace.. see attached.
Comment 1 Nate Graham 2025-08-01 18:34:06 UTC
Looks like it was hung in X11-specific code.