Hello, I've been using lightdm as the display manager on my Debian Testing for a very long time, and have been quite pleased with it. But lately -- not sure since when, I think in the last two weeks -- something broke in the communication between Plasma and lightdm. The screen locker doesn't show "switch user" anymore, and neither does the "Leave" part of the launcher menu. I have the Lock/Logout plasmoid in the systray, which always shows a "switch user" icon, and that works, but is currently the only graphical way to switch user.
I've tried running an XFCE session and its logout window had a working "switch user" button, so I'm guessing Plasma is the prime suspect. Has anyone else encountered anything similar? Thanks, Shai.