Linux Galaxy

KDE/Plasma5 Lock Screen Missing Password Prompt

Posted on Dec 03, 2021 by kingbeowulf


Every so often the KDE lock screen is missing the password prompt. The mouse cursor moves around, wakes up the display, with no way to get back to the desktop. Normally I'd just force a log out or SHIFT-CTRL-BACKSPACE, but I had a bunch of stuff running that I didn't want to unceremoniously kill. Of course, searching for another answer these days provides all sorts of nonsensical systemd stuff. One post mentioned loginctl, part of elogind. I then remembered that Slackware switched to elogind. I remoted in from another desktop - running Xfce which does not seem to suffer from this lock screen issue. 

1$ loginctl
2SESSION  UID USER    SEAT  TTY  
3      1 1000 beowulf seat0 tty1 
4      2 1000 beowulf       pts/4
5
62 sessions listed.

Now, we just pick the session to unlock.

1$ loginctl unlock-session 1

ISSUE RESOLVED - back to the KDE desktop as normal.

Even after 25 years, I always enjoy learning new tricks for Linux, and for Slackware in particular.


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