I had a fresh installation of debian 10.3 with gnome installed, and I went ahead and installed the MATE desktop additionally. During installation I was asked whether I would like to use gdm3 or lightdm, and I picked lightdm.
After installation, I noticed that when booting I get instantly logged in, and there is no login screen anymore.
As if this was not enough of an issue, I am working from home via VNC, so I am pretty much limited in my options (its my companys PC which is having the issue).
And since installing mate, I cannot log lout anymore, because it a) shuts down the
vncserver for whatever reason and b) just plain logs in again (I see this when I restart the vncserver and connect again).
So how do I restore the greeter/login upon boot/log off of a user? As I also want to switch from wayland to X11 (for other reasons), I can't do so since I don't have the corresponding options to pick a session in the login screen.
Now I have no login screen, and logging off disconnects the vncserver, so something seems to be pretty broken here, and I have no clue how to repair it.
Out of confusion I did the following additional attempts (without success):
- following Debian Wiki, I purged gnome*
- reinstalled gdm3 and tried to switch to gdm3 - same situation
So I am stuck here, please someone come to the rescue! :)