Bug 506821 - On X11, sometimes lock screen is frozen and can't unlock; fix is to kill process kscreenlocker_greet
Summary: On X11, sometimes lock screen is frozen and can't unlock; fix is to kill proc...
Status: REPORTED
Alias: None
Product: plasmashell
Classification: Plasma
Component: Screen locking (other bugs)
Version First Reported In: 6.4.2
Platform: Arch Linux Linux
: NOR grave
Target Milestone: 1.0
Assignee: Plasma Bugs List
URL:
Keywords: X11-only
Depends on:
Blocks:
 
Reported: 2025-07-09 20:05 UTC by demlak
Modified: 2025-10-06 21:11 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
buckstrace of kscreenlock greeter (143.18 KB, text/plain)
2025-07-09 20:05 UTC, demlak 		Details
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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.