in /etc/X11/Xsession.d there are these 2 files: 00upstart 99upstart The session starts after removing these 2 files.
** Summary changed: - Session fails to start after an upgrade from Xenial to Bionic + Session fails to start after an upgrade from Xenial to Bionic (leftover from upstart) ** Changed in: gnome-session (Ubuntu) Importance: Undecided => Critical ** Changed in: gnome-session (Ubuntu) Status: New => Triaged ** Tags added: rls-bb-incoming ** Also affects: upstart (Ubuntu) Importance: Undecided Status: New ** Summary changed: - Session fails to start after an upgrade from Xenial to Bionic (leftover from upstart) + Session fails to start after an upgrade from Xenial to Bionic (leftover from upstart, uninstall it on upgrade) ** Changed in: upstart (Ubuntu) Importance: Undecided => Critical ** Changed in: upstart (Ubuntu) Status: New => Triaged ** No longer affects: gnome-session (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/1749199 Title: purge conf files on removal of upstart (was session fails to start after an upgrade from xenial to bionic) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1749199/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs