Public bug reported:
After locking Ubuntu and leaving it unattended for a while, the
operating system cannot be unlocked anymore. No means of user input
(e.g. typing on the keyboard, moving the mouse) produce the lock screen
and I have to shut down my computer by pressing down the power button.
The attached monitor does not receive a signal from the computer during
these attempts.
This started to happen several weeks ago and worked without a problem
before then.
Due to the nature of this issue, I can neither report any errors
occurring nor can I observe any other out of the ordinary things from
happening. Thus, I don’t know which package is causing the issue. Also,
this issue happens every time I leave the computer unattended for a
longer time and lock it. However, locking it and triggering an input
immediately after does produce the lock screen, so the lock screen seems
to work in principle.
Description: Ubuntu 20.04.4 LTS
Release: 20.04
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1964711
Title:
Locked Ubuntu is frozen and cannot be unlocked
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