[+1213.25s] DEBUG: Session pid=1210: Terminated with signal 1
[+1213.25s] DEBUG: Seat seat0: Session stopped
[+1213.25s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+1213.25s] DEBUG: Sending signal 15 to process 1100
[+1213.28s] DEBUG: Got signal 15 from process 1
[+1213.28s] DEBUG: Caught Terminated signal, shutting down
[+1213.28s] DEBUG: Stopping display manager
[+1213.28s] DEBUG: Seat seat0: Stopping
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.18.3, UID=0 PID=1036
[+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-disable-log-backup.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.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.d/50-no-guest.conf
[+0.00s] DEBUG:   [SeatDefaults] is now called [Seat:*], please update this configuration
[+0.00s] DEBUG: Loading 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: Registered seat module unity
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.01s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: Quitting Plymouth
[+0.03s] DEBUG: Using VT 7
[+0.03s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.03s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.03s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+0.03s] DEBUG: DisplayServer x-0: Launching X Server
[+0.03s] DEBUG: Launching process 1075: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.03s] DEBUG: DisplayServer x-0: 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
[+0.03s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.03s] DEBUG: User /org/freedesktop/Accounts/User1004 added
[+0.76s] DEBUG: Got signal 10 from process 1075
[+0.76s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+0.76s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+0.83s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+0.83s] DEBUG: Session pid=1137: Started with service 'lightdm-greeter', username 'lightdm'
[+0.84s] DEBUG: Session pid=1137: Authentication complete with return value 0: Success
[+0.84s] DEBUG: Seat seat0: Session authenticated, running command
[+0.84s] DEBUG: Session pid=1137: Running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+0.84s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+0.84s] DEBUG: Session pid=1137: Logging to /var/log/lightdm/seat0-greeter.log
[+0.89s] DEBUG: Activating VT 7
[+0.89s] DEBUG: Activating login1 session c1
[+0.89s] DEBUG: Seat seat0 changes active session to c1
[+0.89s] DEBUG: Session c1 is already active
[+1.05s] DEBUG: Greeter connected version=1.18.3 resettable=false
[+1.17s] DEBUG: Greeter start authentication for xuancong
[+1.17s] DEBUG: Session pid=1188: Started with service 'lightdm', username 'xuancong'
[+1.17s] DEBUG: Session pid=1188: Got 1 message(s) from PAM
[+1.17s] DEBUG: Prompt greeter with 1 message(s)
[+1.27s] DEBUG: User /org/freedesktop/Accounts/User108 added
[+7.74s] DEBUG: Continue authentication
[+7.76s] DEBUG: Session pid=1188: Authentication complete with return value 0: Success
[+7.76s] DEBUG: Authenticate result for user xuancong: Success
[+7.76s] DEBUG: User xuancong authorized
[+7.78s] DEBUG: Greeter requests session ubuntu
[+7.78s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+7.78s] DEBUG: Session pid=1137: Sending SIGTERM
[+7.79s] DEBUG: Session pid=1137: Exited with return value 0
[+7.79s] DEBUG: Seat seat0: Session stopped
[+7.79s] DEBUG: Seat seat0: Greeter stopped, running session
[+7.79s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+7.80s] DEBUG: Session pid=1188: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+7.80s] DEBUG: Creating shared data directory /var/lib/lightdm-data/xuancong
[+7.80s] DEBUG: Session pid=1188: Logging to .xsession-errors
[+7.86s] DEBUG: Activating VT 7
[+7.86s] DEBUG: Activating login1 session c2
[+7.86s] DEBUG: Seat seat0 changes active session to c2
[+7.86s] DEBUG: Session c2 is already active
[+277.47s] DEBUG: Seat seat0 changes active session to 
[+280.12s] DEBUG: Seat seat0 changes active session to c2
[+280.12s] DEBUG: Session c2 is already active
[+521.00s] DEBUG: Session pid=1188: Terminated with signal 1
[+521.00s] DEBUG: Seat seat0: Session stopped
[+521.00s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+521.00s] DEBUG: Sending signal 15 to process 1075
[+521.10s] DEBUG: Got signal 15 from process 1
[+521.11s] DEBUG: Caught Terminated signal, shutting down
[+521.11s] DEBUG: Stopping display manager
[+521.11s] DEBUG: Seat seat0: Stopping
[+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.00s] DEBUG: Starting Light Display Manager 1.18.3, UID=0 PID=1216
[+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-disable-log-backup.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-guest-wrapper.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-unity-greeter.conf
[+0.00s] DEBUG: Loading configuration from /usr/share/lightdm/lightdm.conf.d/50-xserver-command.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.d/50-no-guest.conf
[+0.00s] DEBUG:   [SeatDefaults] is now called [Seat:*], please update this configuration
[+0.00s] DEBUG: Loading 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: Registered seat module unity
[+0.00s] DEBUG: Monitoring logind for seats
[+0.00s] DEBUG: New seat added from logind: seat0
[+0.00s] DEBUG: Seat seat0: Loading properties from config section Seat:*
[+0.00s] DEBUG: Seat seat0: Starting
[+0.00s] DEBUG: Seat seat0: Creating greeter session
[+0.00s] DEBUG: Seat seat0: Creating display server of type x
[+0.01s] DEBUG: Seat seat0: Plymouth is running on VT 1, but this is less than the configured minimum of 7 so not replacing it
[+0.01s] DEBUG: Quitting Plymouth
[+0.11s] DEBUG: Using VT 7
[+0.11s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.11s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.11s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+0.11s] DEBUG: DisplayServer x-0: Launching X Server
[+0.11s] DEBUG: Launching process 1268: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.11s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.11s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.11s] 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/User1004 added
[+0.67s] DEBUG: Got signal 10 from process 1268
[+0.67s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+0.67s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+0.73s] DEBUG: Seat seat0: Display server ready, starting session authentication
[+0.74s] DEBUG: Session pid=1327: Started with service 'lightdm-greeter', username 'lightdm'
[+0.74s] DEBUG: Session pid=1327: Authentication complete with return value 0: Success
[+0.74s] DEBUG: Seat seat0: Session authenticated, running command
[+0.74s] DEBUG: Session pid=1327: Running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+0.74s] DEBUG: Creating shared data directory /var/lib/lightdm-data/lightdm
[+0.74s] DEBUG: Session pid=1327: Logging to /var/log/lightdm/seat0-greeter.log
[+0.77s] DEBUG: Activating VT 7
[+0.77s] DEBUG: Activating login1 session c1
[+0.77s] DEBUG: Seat seat0 changes active session to c1
[+0.77s] DEBUG: Session c1 is already active
[+0.84s] DEBUG: Greeter connected version=1.18.3 resettable=false
[+0.89s] DEBUG: Greeter start authentication for xuancong
[+0.89s] DEBUG: Session pid=1378: Started with service 'lightdm', username 'xuancong'
[+0.89s] DEBUG: Session pid=1378: Got 1 message(s) from PAM
[+0.89s] DEBUG: Prompt greeter with 1 message(s)
[+0.95s] DEBUG: User /org/freedesktop/Accounts/User108 added
[+64.43s] DEBUG: Continue authentication
[+64.44s] DEBUG: Session pid=1378: Authentication complete with return value 0: Success
[+64.44s] DEBUG: Authenticate result for user xuancong: Success
[+64.44s] DEBUG: User xuancong authorized
[+64.47s] DEBUG: Greeter requests session ubuntu
[+64.47s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+64.47s] DEBUG: Session pid=1327: Sending SIGTERM
[+64.49s] DEBUG: Session pid=1327: Exited with return value 0
[+64.49s] DEBUG: Seat seat0: Session stopped
[+64.49s] DEBUG: Seat seat0: Greeter stopped, running session
[+64.49s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+64.49s] DEBUG: Session pid=1378: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+64.49s] DEBUG: Creating shared data directory /var/lib/lightdm-data/xuancong
[+64.49s] DEBUG: Session pid=1378: Logging to .xsession-errors
[+64.51s] DEBUG: Activating VT 7
[+64.51s] DEBUG: Activating login1 session c2
[+64.52s] DEBUG: Seat seat0 changes active session to c2
[+64.52s] DEBUG: Session c2 is already active