[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.1.8, UID=0 PID=1000
[+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 greeter
[+0.00s] DEBUG: Starting local X display
[+0.00s] DEBUG: X server :0 will replace Plymouth
[+0.03s] DEBUG: Using VT 7
[+0.03s] DEBUG: Activating VT 7
[+0.03s] DEBUG: Logging to /var/log/lightdm/x-0.log
[+0.03s] DEBUG: Writing X server authority to /var/run/lightdm/root/:0
[+0.03s] DEBUG: Launching X Server
[+0.03s] DEBUG: Launching process 1009: /usr/bin/X :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch -background none
[+0.03s] DEBUG: Waiting for ready signal from X server :0
[+0.03s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.03s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.87s] DEBUG: Got signal 10 from process 1009
[+0.87s] DEBUG: Got signal from X server :0
[+0.87s] DEBUG: Stopping Plymouth, X server is ready
[+0.89s] DEBUG: Connecting to XServer :0
[+0.89s] DEBUG: Starting greeter
[+0.89s] DEBUG: Started session 1034 with service 'lightdm', username 'lightdm'
[+1.30s] DEBUG: Session 1034 authentication complete with return value 0: Success
[+1.30s] DEBUG: Greeter authorized
[+1.30s] DEBUG: Logging to /var/log/lightdm/x-0-greeter.log
[+1.30s] DEBUG: Session 1034 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+1.61s] DEBUG: Greeter connected version=1.1.8
[+1.61s] DEBUG: Greeter connected, display is ready
[+1.61s] DEBUG: New display ready, switching to it
[+1.61s] DEBUG: Activating VT 7
[+2.68s] DEBUG: Greeter start authentication for tmcuong
[+2.68s] DEBUG: Started session 1475 with service 'lightdm', username 'tmcuong'
[+2.68s] DEBUG: Session 1475 got 1 message(s) from PAM
[+2.68s] DEBUG: Prompt greeter with 1 message(s)
[+85.63s] DEBUG: Continue authentication
[+85.69s] DEBUG: Session 1475 authentication complete with return value 0: Success
[+85.69s] DEBUG: Authenticate result for user tmcuong: Success
[+85.70s] DEBUG: User tmcuong authorized
[+85.73s] DEBUG: Greeter requests session ubuntu
[+85.73s] DEBUG: Using session ubuntu
[+85.73s] DEBUG: Stopping greeter
[+85.73s] DEBUG: Session 1034: Sending SIGTERM
[+85.79s] DEBUG: Session 1034 exited with return value 0
[+85.79s] DEBUG: Greeter quit
[+85.81s] DEBUG: Dropping privileges to uid 1000
[+85.81s] DEBUG: Restoring privileges
[+85.83s] DEBUG: Dropping privileges to uid 1000
[+85.83s] DEBUG: Writing /home/tmcuong/.dmrc
[+85.95s] DEBUG: Restoring privileges
[+86.02s] DEBUG: Starting session ubuntu as user tmcuong
[+86.02s] DEBUG: Session 1475 running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+86.04s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+86.04s] DEBUG: Greeter closed communication channel