[+0.02s] DEBUG: Logging to /var/log/lightdm/lightdm.log
[+0.02s] DEBUG: Starting Light Display Manager 1.8.2, UID=0 PID=963
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/10-ubuntu.conf
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/50-greeter-wrapper.conf
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/50-unity-greeter.conf
[+0.02s] DEBUG: Loading configuration from /etc/lightdm/lightdm.conf.d/50-xserver-command.conf
[+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: Registered seat module surfaceflinger
[+0.02s] DEBUG: Adding default seat
[+0.02s] DEBUG: Seat: Starting
[+0.02s] DEBUG: Seat: Creating greeter session
[+0.14s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+0.14s] DEBUG: Seat: Creating display server of type x
[+0.14s] DEBUG: Seat: Starting local X display
[+0.15s] DEBUG: Deactivating Plymouth
[+0.17s] DEBUG: Using VT 7
[+0.17s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+0.17s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+0.17s] DEBUG: DisplayServer x-0: Launching X Server
[+0.17s] DEBUG: Launching process 1015: /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.17s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+0.17s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.17s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+5.43s] DEBUG: Got signal 10 from process 1015
[+5.43s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+5.43s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+5.43s] DEBUG: Quitting Plymouth; retaining splash
[+5.46s] DEBUG: Seat: Display server ready, starting session authentication
[+5.46s] DEBUG: Session: Setting XDG_VTNR=7
[+5.46s] DEBUG: Session pid=1165: Started with service 'lightdm-greeter', username 'lightdm'
[+6.33s] DEBUG: Session pid=1165: Authentication complete with return value 0: Success
[+6.33s] DEBUG: Seat: Session authenticated, running command
[+6.33s] DEBUG: Session pid=1165: Setting XDG_VTNR=7
[+6.33s] DEBUG: Session pid=1165: Running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+6.35s] DEBUG: Session pid=1165: Logging to /var/log/lightdm/x-0-greeter.log
[+6.60s] DEBUG: Activating VT 7
[+9.95s] DEBUG: Session pid=1165: Greeter connected version=1.8.2
[+13.51s] DEBUG: Session pid=1165: Greeter start authentication for pzhang
[+13.51s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+13.51s] DEBUG: Session: Setting XDG_VTNR=7
[+13.51s] DEBUG: Session pid=1250: Started with service 'lightdm', username 'pzhang'
[+13.62s] DEBUG: Session pid=1250: Got 1 message(s) from PAM
[+13.62s] DEBUG: Session pid=1165: Prompt greeter with 1 message(s)
[+13.67s] DEBUG: Session pid=1165: Greeter start authentication for pzhang
[+13.67s] DEBUG: Session pid=1250: Sending SIGTERM
[+13.67s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+13.67s] DEBUG: Session: Setting XDG_VTNR=7
[+13.67s] DEBUG: Session pid=1251: Started with service 'lightdm', username 'pzhang'
[+13.67s] DEBUG: Session pid=1250: Terminated with signal 15
[+13.67s] DEBUG: Session: Failed during authentication
[+13.67s] DEBUG: Seat: Session stopped
[+13.68s] DEBUG: Session pid=1251: Got 1 message(s) from PAM
[+13.68s] DEBUG: Session pid=1165: Prompt greeter with 1 message(s)
[+27.77s] DEBUG: Session pid=1165: Continue authentication
[+27.82s] DEBUG: Session pid=1251: Authentication complete with return value 0: Success
[+27.82s] DEBUG: Session pid=1165: Authenticate result for user pzhang: Success
[+27.84s] DEBUG: Session pid=1165: User pzhang authorized
[+27.84s] DEBUG: Session pid=1165: Greeter requests session ubuntu
[+27.89s] DEBUG: Writing /home/pzhang/.dmrc
[+28.02s] DEBUG: Seat: Stopping greeter; display server will be re-used for user session
[+28.02s] DEBUG: Session pid=1165: Sending SIGTERM
[+28.04s] DEBUG: Session pid=1165: Exited with return value 0
[+28.04s] DEBUG: Seat: Session stopped
[+28.04s] DEBUG: Seat: Greeter stopped, running session
[+28.04s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+28.04s] DEBUG: Session pid=1251: Setting XDG_VTNR=7
[+28.04s] DEBUG: Session pid=1251: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+28.04s] DEBUG: Session pid=1251: Logging to .xsession-errors
[+28.10s] DEBUG: Activating VT 7
[+1738.81s] DEBUG: Session pid=1251: Exited with return value 0
[+1738.81s] DEBUG: Seat: Session stopped
[+1738.81s] DEBUG: Seat: Stopping display server, no sessions require it
[+1738.81s] DEBUG: Sending signal 15 to process 1015
[+1738.97s] DEBUG: Process 1015 exited with return value 0
[+1738.97s] DEBUG: DisplayServer x-0: X server stopped
[+1738.97s] DEBUG: Releasing VT 7
[+1738.97s] DEBUG: DisplayServer x-0: Removing X server authority /var/run/lightdm/root/:0
[+1738.97s] DEBUG: Seat: Display server stopped
[+1738.97s] DEBUG: Seat: Active display server stopped, starting greeter
[+1738.97s] DEBUG: Seat: Creating greeter session
[+1738.97s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+1738.97s] DEBUG: Seat: Creating display server of type x
[+1738.97s] DEBUG: Seat: Starting local X display
[+1738.97s] DEBUG: Using VT 7
[+1738.97s] DEBUG: DisplayServer x-0: Logging to /var/log/lightdm/x-0.log
[+1738.97s] DEBUG: DisplayServer x-0: Writing X server authority to /var/run/lightdm/root/:0
[+1738.97s] DEBUG: DisplayServer x-0: Launching X Server
[+1738.97s] DEBUG: Launching process 4259: /usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+1738.97s] DEBUG: DisplayServer x-0: Waiting for ready signal from X server :0
[+1739.26s] DEBUG: Got signal 10 from process 4259
[+1739.26s] DEBUG: DisplayServer x-0: Got signal from X server :0
[+1739.26s] DEBUG: DisplayServer x-0: Connecting to XServer :0
[+1739.26s] DEBUG: Seat: Display server ready, starting session authentication
[+1739.26s] DEBUG: Session: Setting XDG_VTNR=7
[+1739.26s] DEBUG: Session pid=4263: Started with service 'lightdm-greeter', username 'lightdm'
[+1739.29s] DEBUG: Session pid=4263: Authentication complete with return value 0: Success
[+1739.29s] DEBUG: Seat: Session authenticated, running command
[+1739.29s] DEBUG: Session pid=4263: Setting XDG_VTNR=7
[+1739.29s] DEBUG: Session pid=4263: Running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter
[+1739.30s] DEBUG: Session pid=4263: Logging to /var/log/lightdm/x-0-greeter.log
[+1739.32s] DEBUG: Activating VT 7
[+1739.46s] DEBUG: Session pid=4263: Greeter connected version=1.8.2
[+1739.68s] DEBUG: Session pid=4263: Greeter start authentication for pzhang
[+1739.68s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+1739.68s] DEBUG: Session: Setting XDG_VTNR=7
[+1739.68s] DEBUG: Session pid=4341: Started with service 'lightdm', username 'pzhang'
[+1739.68s] DEBUG: Session pid=4341: Got 1 message(s) from PAM
[+1739.68s] DEBUG: Session pid=4263: Prompt greeter with 1 message(s)
[+1739.80s] DEBUG: Session pid=4263: Greeter start authentication for pzhang
[+1739.80s] DEBUG: Session pid=4341: Sending SIGTERM
[+1739.80s] DEBUG: Seat: Setting XDG_SEAT=seat0
[+1739.80s] DEBUG: Session: Setting XDG_VTNR=7
[+1739.80s] DEBUG: Session pid=4343: Started with service 'lightdm', username 'pzhang'
[+1739.80s] DEBUG: Session pid=4341: Terminated with signal 15
[+1739.80s] DEBUG: Session: Failed during authentication
[+1739.80s] DEBUG: Seat: Session stopped
[+1739.81s] DEBUG: Session pid=4343: Got 1 message(s) from PAM
[+1739.81s] DEBUG: Session pid=4263: Prompt greeter with 1 message(s)
[+1755.18s] DEBUG: Session pid=4263: Continue authentication
[+1755.21s] DEBUG: Session pid=4343: Authentication complete with return value 0: Success
[+1755.21s] DEBUG: Session pid=4263: Authenticate result for user pzhang: Success
[+1755.23s] DEBUG: Session pid=4263: User pzhang authorized
[+1755.23s] DEBUG: Session pid=4263: Greeter requests session ubuntu
[+1755.28s] DEBUG: Writing /home/pzhang/.dmrc
[+1755.39s] DEBUG: Seat: Stopping greeter; display server will be re-used for user session
[+1755.39s] DEBUG: Session pid=4263: Sending SIGTERM
[+1755.40s] DEBUG: Session pid=4263: Exited with return value 0
[+1755.40s] DEBUG: Seat: Session stopped
[+1755.40s] DEBUG: Seat: Greeter stopped, running session
[+1755.40s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session1
[+1755.41s] DEBUG: Session pid=4343: Setting XDG_VTNR=7
[+1755.41s] DEBUG: Session pid=4343: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+1755.41s] DEBUG: Session pid=4343: Logging to .xsession-errors
[+1755.49s] DEBUG: Activating VT 7