The issue seems to be in upstart. It appears that whatever is calling it tries to call upstart-udev-bridge which cannot connect to /com/ubuntu/upstart and so no desktop is displayed. Removing upstart solves it but is a bad fix because unity still requires upstart for some silly reason.
Upstart bug with .xsession-errors: https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1537610 Remove upstart dependency: https://bugs.launchpad.net/ubuntu/+source/unity-greeter/+bug/1537616 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1526900 Title: No unity desktop. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1526900/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
