# cat /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.2.3, UID=0 PID=2837
[+0.00s] DEBUG: Loaded configuration from /etc/lightdm/lightdm.conf
[+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.00s] DEBUG: Registered seat module xlocal
[+0.00s] DEBUG: Registered seat module xremote
[+0.00s] DEBUG: Adding default seat
[+0.00s] DEBUG: Starting seat
[+0.00s] DEBUG: Starting new display for automatic guest login
[+0.00s] DEBUG: Starting local X display
[+0.00s] DEBUG: Using VT 7
[+0.00s] DEBUG: Activating VT 7
[+0.00s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+0.00s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+0.00s] DEBUG: Launching X Server
[+0.00s] DEBUG: Launching process 2841: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.00s] DEBUG: Waiting for ready signal from X server :0
[+0.00s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.33s] DEBUG: Got signal 10 from process 2841
[+0.33s] DEBUG: Got signal from X server :0
[+0.33s] DEBUG: Connecting to XServer :0
[+0.33s] DEBUG: Starting greeter
[+0.33s] DEBUG: Started session 2846 with service 'lightdm', username 'lightdm'
[+0.36s] DEBUG: Session 2846 authentication complete with return value 0: Success
[+0.36s] DEBUG: Greeter authorized
[+0.36s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+0.36s] DEBUG: Session 2846 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/lightdm-gtk-greeter
[+0.50s] DEBUG: Greeter connected version=1.2.3
[+0.50s] DEBUG: Greeter connected, display is ready
[+0.50s] DEBUG: New display ready, switching to it
[+0.50s] DEBUG: Activating VT 7
[+0.73s] DEBUG: Greeter start authentication for guest account
[+2.54s] DEBUG: Greeter start authentication for guest account