[+20.79s] DEBUG: Activating login1 session c15
[+20.79s] WARNING: Error activating login1 session: GDBus.Error:org.freedesktop.DBus.Error.Failed: Operation not supported
[+20.79s] DEBUG: Session pid=11903: Exited with return value 1
[+20.79s] DEBUG: Seat: Session stopped
[+20.79s] DEBUG: Seat: Stopping display server, no sessions require it
[+20.79s] DEBUG: Sending signal 15 to process 11852
[+21.02s] DEBUG: Process 11852 exited with return value 0
[+21.02s] DEBUG: DisplayServer xvnc-1: Xvnc server stopped
[+21.02s] DEBUG: DisplayServer xvnc-1: Removing X server authority /var/run/lightdm/root/:1
[+21.02s] DEBUG: Seat: Display server stopped
[+21.02s] DEBUG: Seat: Active display server stopped, starting greeter
[+21.02s] DEBUG: Seat: Stopping; failed to start a greeter
[+21.02s] DEBUG: Seat: Stopping
[+21.02s] DEBUG: Seat: Stopped