Installing libpam-systemd makes both work.
-- Eugen -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
Just to say that I had the same problem: gdm3 did not start, a black
screen with 2 lines of error were shown. startx showed a black screen
with mouse movement only working. Bizarre, startx worked when removing
and reinstalling right afterwards gnome-shell gnome-session gdm3
gnome-core; I have not investigated more since then.
