https://bugs.kde.org/show_bug.cgi?id=487053
Bug ID: 487053
Summary: When fingerprint signature is enabled lock screen not
shown when locked shortly after unlock
Classification: Plasma
Product: kscreenlocker
Version: 6.0.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: oleg.g...@gmail.com
Target Milestone: ---
SUMMARY
When fingerprint signature is enabled there is some weird behavior when locking
screen again shortly after unlock (a few seconds). On this second attempt no
lock screen is shown. Instead all windows become unresponsive. I can move the
mouse around, but cannot interact with any windows and controls. Keyboard input
is also blocked. After a few seconds mouse and keyboard become unblocked and I
can use KDE as usual.
Jounrlctl shows the following warning at about the same time:
тра 15 11:44:27 p15v ksmserver[14600]: QProcess::start: Process is already
running
When I remove fingerprint signature via fprintd-delete, lock screen works as
expected.
STEPS TO REPRODUCE
1. Create fingerprint signature as per
https://wiki.archlinux.org/title/fprint#Create_fingerprint_signature
2. Lock screen with Meta+L shortcut
3. Unlock screen with password
4. Wait 5 seconds
5. Lock screen with Meta+L shortcut
OBSERVED RESULT
No lock screen is shown. All windows and controls become unresponsive, keyboard
input is blocked.
EXPECTED RESULT
Lock screen is shown.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
ADDITIONAL INFORMATION
Kernel Version: 6.8.7-arch1-1 (64-bit)
Graphics Platform: X11
Fingerprint Reader: Synaptics, Inc. Prometheus MIS Touch Fingerprint Reader
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