[+0.02s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.02s] DEBUG: Starting Light Display Manager 1.16.7, UID=0 PID=2715
[+0.02s] DEBUG: Loading configuration dirs from /usr/share/lightdm/lightdm.conf.d
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.conf
[+0.02s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/60-lightdm-gtk-greeter.conf
[+0.02s] DEBUG: Loading configuration dirs from /usr/local/share/lightdm/lightdm.conf.d
[+0.02s] DEBUG: Loading configuration dirs from /etc/xdg/lightdm/lightdm.conf.d
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/50-myconfig.conf
[+0.02s] DEBUG:   [SeatDefaults] is now called [Seat:*], please update this configuration
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf
[+0.02s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager
[+0.02s] DEBUG: Registered seat module xlocal
[+0.02s] DEBUG: Registered seat module xremote
[+0.02s] DEBUG: Registered seat module unity
[+0.02s] DEBUG: Monitoring logind for seats
[+0.02s] DEBUG: New seat added from logind: seat0
[+0.02s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.02s] DEBUG: Seat seat0: Starting
[+0.02s] DEBUG: Seat seat0: Creating greeter session
[+0.08s] DEBUG: Seat seat0: Creating display server of type x
[+0.08s] DEBUG: Using VT 7
[+0.08s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.08s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.08s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+0.08s] DEBUG: DisplayServer x-0: Launching X Server
[+0.10s] DEBUG: Launching process 2722: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.10s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.10s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.10s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.12s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.12s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.97s] DEBUG: Seat seat0 changes active session to 
[+0.97s] CRITICAL: session_get_login1_session_id: assertion 'session != NULL' failed
[+1.58s] DEBUG: Got signal 10 from process 2722
[+1.58s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+1.58s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+1.58s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+1.58s] DEBUG: Session pid=2745: Started with service 'lightdm-greeter', username 'lightdm'
[+1.59s] DEBUG: Session pid=2745: Authentication complete with return value 0: Success
[+1.59s] DEBUG: Seat seat0: Session authenticated, running command
[+1.59s] DEBUG: Session pid=2745: Running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+1.59s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+1.59s] DEBUG: Session pid=2745: Logging to /var/log/lightdm/x-0-greeter.log
[+1.67s] DEBUG: Activating VT 7
[+1.67s] DEBUG: Activating login1 session c2
[+1.67s] DEBUG: Seat seat0 changes active session to c2
[+1.67s] DEBUG: Session c2 is already active
[+4.55s] DEBUG: Session pid=2745: Greeter connected version=1.16.7 resettable=false
[+7.95s] DEBUG: Session pid=2745: Greeter start authentication for sam
[+7.95s] DEBUG: Session pid=2797: Started with service 'lightdm', username 'sam'
[+7.99s] DEBUG: Session pid=2797: Got 1 message(s) from PAM
[+7.99s] DEBUG: Session pid=2745: Prompt greeter with 1 message(s)
[+10.07s] DEBUG: User /org/freedesktop/Accounts/User112 added
[+18.91s] DEBUG: Session pid=2745: Greeter start authentication for guest account
[+18.91s] DEBUG: Session pid=2797: Sending SIGTERM
[+18.92s] DEBUG: Session pid=2797: Terminated with signal 15
[+18.92s] DEBUG: Session: Failed during authentication
[+18.92s] DEBUG: Seat seat0: Session stopped
[+20.75s] DEBUG: Session pid=2745: Greeter start authentication for sam
[+20.75s] DEBUG: Session pid=2913: Started with service 'lightdm', username 'sam'
[+20.76s] DEBUG: Session pid=2913: Got 1 message(s) from PAM
[+20.76s] DEBUG: Session pid=2745: Prompt greeter with 1 message(s)
[+27.55s] DEBUG: Session pid=2745: Continue authentication
[+27.58s] DEBUG: Session pid=2913: Authentication complete with return value 0: Success
[+27.58s] DEBUG: Session pid=2745: Authenticate result for user sam: Success
[+27.58s] DEBUG: Session pid=2745: User sam authorized
[+27.60s] DEBUG: Session pid=2745: Greeter requests session ubuntu
[+27.60s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+27.60s] DEBUG: Session pid=2745: Sending SIGTERM
[+27.70s] DEBUG: Session pid=2745: Greeter closed communication channel
[+27.70s] DEBUG: Session pid=2745: Exited with return value 0
[+27.70s] DEBUG: Seat seat0: Session stopped
[+27.70s] DEBUG: Seat seat0: Greeter stopped, running session
[+27.70s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+27.70s] DEBUG: Session pid=2913: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+27.70s] DEBUG: Creating shared data directory /var/lib/lightdm-data/sam
[+27.71s] DEBUG: Session pid=2913: Logging to .xsession-errors
[+27.71s] DEBUG: Activating VT 7
[+27.71s] DEBUG: Activating login1 session c3
[+27.71s] DEBUG: Seat seat0 changes active session to c3
[+27.71s] DEBUG: Session c3 is already active
[+176238.85s] DEBUG: Seat seat0 changes active session to 
[+176253.73s] DEBUG: Seat seat0 changes active session to c4
[+176466.91s] DEBUG: Seat seat0 changes active session to c3
[+176466.91s] DEBUG: Session c3 is already active