KDE: Switching between users is no longer possible

[Sven N.]

I recently upgraded to Ubuntu 20.10 from 20.04 and now the "Switch User" functionality is gone. This is a HUGE issue as it completely breaks multi-user functionality.

Likely it's related to this bug:
https://bugs.kde.org/show_bug.cgi?id=423526

[Sven N. (drecksoft)]

There's even more broken. I tried logging on into tty2 with the second account and then use startx to start a second session. This immediately makes the first session unusable. Switching back to screen 1 just shows a black screen.

This way, the system is completely unusable.

[Sven N. (drecksoft)]

Downgrading to systemd 245 helped. Of course that's only a temporary solution.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1909987/+editstatus and add the package name in the text box next to the word Package.

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