Okay, so I reinstalled lightdm, which didn't used to even come up properly. It does now. Also, the problem in this bug report indeed does NOT occur under lightdm: I can switch between users.
So it only happens under gdm.
Okay, so I reinstalled lightdm, which didn't used to even come up properly.
It does now.
Also, the problem in this bug report indeed does NOT occur under lightdm: I can switch between users.
So it only happens under gdm.