Would you be able to try this with another display manager, e.g. gdm? Can you see what $PATH is set to when logging in on a terminal? It looks at first glance like the session can't find upstart, and that can't find the session processes to run.
** Changed in: lightdm (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1228079 Title: Login issue: Lightdm + LDAP + Kerberos To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1228079/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs