Re: Update brings lightdm back

Thierry de Coulon wrote:

Just decided to let my Debian 10 update, which it did. Next reboot I got greeted by xfce's login screen (I had installed Debian with xfce), managed to find my way back into TDE running the usuall dpkg-reconfigure lightdm.

However I was wondering: if I remove lightdm, what will happen next update?

Looks like last installed is last configured. If you remove it it should stay with TDM. It is basically changing links in the background that point to the one that is assumed as default or selected AFAIR.