[+1470.26s] DEBUG: Continue authentication
[+1470.28s] DEBUG: Session pid=1925: Authentication complete with return value 0: Success
[+1470.28s] DEBUG: Authenticate result for user atef: Success
[+1470.28s] DEBUG: User atef authorized
[+1470.29s] DEBUG: Greeter requests session ubuntu
[+1470.29s] DEBUG: Seat seat0: Stopping greeter; display server will be re-used for user session
[+1470.29s] DEBUG: Session pid=1855: Sending SIGTERM
[+1470.35s] DEBUG: Greeter closed communication channel
[+1470.35s] DEBUG: Session pid=1855: Exited with return value 0
[+1470.35s] DEBUG: Seat seat0: Session stopped
[+1470.35s] DEBUG: Seat seat0: Greeter stopped, running session
[+1470.35s] DEBUG: Registering session with bus path /org/freedesktop/DisplayManager/Session0
[+1470.36s] DEBUG: Session pid=1925: Running command /usr/sbin/lightdm-session gnome-session --session=ubuntu
[+1470.36s] DEBUG: Creating shared data directory /var/lib/lightdm-data/atef
[+1470.36s] DEBUG: Session pid=1925: Logging to .xsession-errors
[+1470.40s] DEBUG: Activating VT 7
[+1470.40s] DEBUG: Activating login1 session c2
[+1470.40s] DEBUG: Seat seat0 changes active session to c2
[+1470.41s] DEBUG: Session c2 is already active