Did you try rebooting? GDM has a bug where it won't recognize any new gnome-session sessions until gdm itself is restarted (which generally only happens when you restart your computer).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1712504 Title: No 'Ubuntu' session after an upgrade from Zesty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/1712504/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs