Screen only partially locked. Password promt was visible, but switching to window and typing eg in terminal was possible

[Chris]

Today I returned to my PC, which was on over night.

The screen was only partially locked. The password prompt was full screen except the start menu on the left was visible. I was able to click on the Icons of running applications and was able to type in an open terminal which responded correctly and executed the commands (I tried "reset").

I have no Idea what can cause this issue and would appreciate help on how to gather information that can help the Ubuntu team find the cause of the issue.

I saved copies of dmesg, syslog and kern.log.
I have not tried reproducing the bug.
I do not know if I actively locked the screen or if I just walked off yesterday.

Best Regards,
Chris

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: gnome-screensaver (not installed)
ProcVersionSignature: Ubuntu 5.13.0-35.40-generic 5.13.19
Uname: Linux 5.13.0-35-generic x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 22 08:16:18 2022
InstallationDate: Installed on 2021-12-13 (98 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
SourcePackage: gnome-screensaver
Symptom: security
Title: Screen locking issue
UpgradeStatus: No upgrade log present (probably fresh install)

[Chris (dumpfheimer)]

For clarification:

"but switching to window and typing eg in terminal was possible Edit" may be misleading.

The window did NOT appear on screen. I DID see the preview when hovering the icon in the menu but the window itself was not visible. However typing in the window WAS possible.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1882353, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.