I've marked #964607 as a duplicate. I believe that the problem lies in /var/lib/AccountsService/users/<username> file.
I had this line: XSession=xsession I noticed that a new user had XSession=ubuntu I changed mine to read "ubuntu", rebooted, and was fine. The original poster said "In my opinion, this fix should be applied automatically for all users using ubuntu-2d and upgrading their distribution." I'd change this to "this fix should be applied automatically for all users using ubuntu-2d or xsession and upgrading their distribution." Is there a list of acceptable values for this key? If so, what are the package dependencies? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1059137 Title: Cannot login after un upgrade from 12.04 to 12.10 (ubuntu-2d) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1059137/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs