Unfortunately apport-collect did not attach any logs, only some information about versions.
Can you please attach the output of journalctl after unsuccessful login attempt, as suggested by Alberts in https://bugs.launchpad.net/ubuntu/+source/gnome- flashback/+bug/1753807/comments/7 ? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802094 Title: Can not start Flashback session in 18.04 (Bionic) after update from 16.04 (Xenial) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-flashback/+bug/1802094/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs