It appears that lightdm-gtk-greeter is waiting for init (upstart) to exit. upstart is in turn waiting on the indicator services to exit. From the log:
** (lightdm-gtk-greeter:2775): WARNING **: Failed to load user image: Failed to open file '/home/jack/.face': No such file or directory init: indicator-power main process (2805) killed by TERM signal init: indicator-power main process ended, respawning init: indicator-sound main process (2807) killed by TERM signal init: indicator-sound main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power main process ended, respawning init: indicator-power respawning too fast, stopped >From ps waxf: 1939 ? Sl 0:01 /usr/sbin/lightdm-gtk-greeter 1966 ? S 0:00 init --user --startup-event indicator-services-start 2000 ? Ssl 0:00 \_ /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service (several such instances may be seen) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1290575 Title: lightdm-gtk-greeter does not exit cleanly when logging in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm-gtk-greeter/+bug/1290575/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs