Bem, descobri por que, de acordo com /var/log/lightdm/lightdm.log
:
DEBUG: Failed to load session file /usr/share/xsessions/ubuntu.desktop DEBUG: Session 1800: Sending SIGTERM Started seesion 2020 with service 'lightdm', username 'lightdm' DEBUG: Session 2020 authentication complete with return value 0: Success DEBUG: Greeter authorized DEBUG: Logging to /var/log/lightdm/x-0-greeter.log DEUBG: Failed to load session file /usr/share/xgreeters/default.desktop: No such file or directory DEBUG: Greeter failed to start DEBUG: Stopping display
Houve algo errado com /etc/lightdm/lightdm.conf
. Eu mudei para:
[SeatDefaults] user-session=xubuntu greeter-session=lightdm-gtk-greeter autologin-user=ubuntu autologin-timeout=0
Isso forçou o uso de xubuntu.desktop
e lightdm-gtk-greeter.desktop
em vez de ubuntu.desktop
e default.desktop
, que não existem e causarão falhas.