pi@fabscanpi:/var/log/lightdm $ sudo cat lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.26.0, UID=0 PID=8625
[+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/01_debian.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: Registered seat module local
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Registered seat module unity
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.04s] DEBUG: Monitoring logind for seats
[+0.04s] DEBUG: New seat added from logind: seat0
[+0.04s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.04s] DEBUG: Seat seat0: Starting
[+0.04s] DEBUG: Seat seat0: Creating user session
[+0.04s] WARNING: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
[+0.04s] DEBUG: Loading user config from /etc/lightdm/users.conf
[+0.04s] DEBUG: User pi added
[+0.04s] DEBUG: Seat seat0: Creating display server of type x
[+0.04s] DEBUG: posix_spawn avoided (fd close requested)
[+0.05s] DEBUG: Using VT 7
[+0.05s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.05s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.05s] DEBUG: XServer 0: Writing X server authority to /var/run/lightdm/root/:0
[+0.05s] DEBUG: XServer 0: Launching X Server
[+0.05s] DEBUG: Launching process 8630: /usr/bin/X :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.05s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.05s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.05s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.05s] DEBUG: posix_spawn avoided (automatic reaping requested) (fd close requested)