Galera, já tinha modificado pelo nano /etc/lightdm/lightdm.conf para logar direto há um tempo e do nada está pedindo a senha no login novamente. Já tentei de tudo, tem algum jeito de restaurar/ reinstalar o lightdm?
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log [+0.00s] DEBUG: Starting Light Display Manager 1.30.0, UID=0 PID=3758 [+0.00s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-backup-logs.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-disable-guest.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-minimum-vt.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-run-directory.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-session-wrapper.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-user-authority-in-system-dir.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf [+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/90-slick-greeter.conf [+0.00s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d [+0.00s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d [+0.00s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf [+0.00s] DEBUG: Using Xephyr for X servers [+0.00s] DEBUG: Registered seat module local [+0.00s] DEBUG: Registered seat module xremote [+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager [+0.00s] DEBUG: _g_io_module_get_default: Found default implementation local (GLocalVfs) for ?gio-vfs? [+0.00s] DEBUG: Monitoring logind for seats [+0.01s] DEBUG: New seat added from logind: seat0 [+0.01s] DEBUG: Seat seat0: Loading properties from config section Seat:* [+0.01s] DEBUG: Seat seat0: Starting [+0.01s] DEBUG: Seat seat0: Creating user session [+0.01s] DEBUG: Loading users from org.freedesktop.Accounts [+0.01s] DEBUG: User /org/freedesktop/Accounts/User1000 added [+0.01s] DEBUG: Seat seat0: Creating display server of type x [+0.01s] DEBUG: posix_spawn avoided (fd close requested) [+0.02s] DEBUG: Using VT 1 [+0.02s] DEBUG: Seat seat0: Starting local X display on VT 1 [+0.02s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log [+0.02s] DEBUG: XServer 1: Can't launch X server Xephyr, not found in path [+0.02s] DEBUG: XServer 1: X server stopped [+0.02s] DEBUG: Releasing VT 1 [+0.02s] DEBUG: Seat seat0: Display server stopped [+0.02s] DEBUG: Seat seat0: Can't create display server for automatic login [+0.02s] DEBUG: Seat seat0: Session stopped [+0.02s] DEBUG: Seat seat0: Stopping display server, no sessions require it [+0.02s] DEBUG: Seat seat0: Creating greeter session [+0.02s] DEBUG: Seat seat0: Creating display server of type x [+0.02s] DEBUG: Using VT 1 [+0.02s] DEBUG: Seat seat0: Starting local X display on VT 1 [+0.02s] DEBUG: XServer 1: Logging to /var/log/lightdm/x-1.log [+0.02s] DEBUG: XServer 1: Can't launch X server Xephyr, not found in path [+0.02s] DEBUG: XServer 1: X server stopped [+0.02s] DEBUG: Releasing VT 1 [+0.02s] DEBUG: Seat seat0: Display server stopped [+0.02s] DEBUG: Seat seat0: Can't create display server for greeter [+0.02s] DEBUG: Seat seat0: Session stopped [+0.02s] DEBUG: Seat seat0: Stopping display server, no sessions require it [+0.02s] DEBUG: Seat seat0: Stopping [+0.02s] DEBUG: Seat seat0: Stopped [+0.02s] DEBUG: Failed to start seat: seat0