https://bugs.kde.org/show_bug.cgi?id=519400
Bug ID: 519400
Summary: Lock screen unresponsive after waking from sleep;
requires "Switch User" to SDDM to log in
Classification: Plasma
Product: plasmashell
Version First 6.6.4
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: Screen locking
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: 1.0
Created attachment 191787
--> https://bugs.kde.org/attachment.cgi?id=191787&action=edit
kscreenlocker logs gathered using "journalctl -b 0 | grep -i kscreenlocker"
SUMMARY
After locking the screen and putting the system to sleep, the lock screen
becomes unresponsive upon waking up. It will not accept input or unlock the
session. Clicking the "Switch User" button drops back to the initial SDDM login
screen, which functions correctly and allows successfully logging back into the
session.
STEPS TO REPRODUCE
1. Lock the Plasma session.
2. Suspend the system to sleep.
3. Wake the system.
4. Attempt to type the password and unlock the screen
Reproducibility: Sometimes (Intermittent)
OBSERVED RESULT
The lock screen won't unlock.
EXPECTED RESULT
The lock screen should accept the password and successfully unlock the existing
session.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 6.19.11-arch1-1 (64-bit)
KDE Plasma Version: 6.6.4
KDE Frameworks Version: 6.25.0
Qt Version: 6.11.0
ADDITIONAL INFORMATION
Note on User Impact: While the "Switch User" workaround technically exists, it
is highly unintuitive. For months before discovering it, my only perceived way
out of this freeze was a hard hardware shutdown via the power button, resulting
in lost sessions. Most regular users encountering this will likely do the same,
assuming a total system lockup.
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