I, too, have this problem. No login screen after upgrade to 15.10 from 15.04.
I have now spent 36 hours trying to get this upgrade to work. I've tried everything I can find cruising the net. Nothing works. I've gone back and forth between gdm and lightdm. I've uninstalled and reinstalled ubuntu-desktop. All that nonsense and a lot more. I've restored file system backups to the original 15.04 and reapplied the update several times. Nothing in the syslog to suggest the problem. At this point I give up. I'm going back to 15.04 and will stay there until somebody confirms a fix. The real fix might just be that Canonical stops with these 6-month releases that don't work and goes to 1-year releases that do. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/1500673 Title: gdm unusable after upgrading to 15.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1500673/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
