To add more info, the following steps cause this issue on my machine and are reproducible.
- Start machine login to user A - Logout of user A - Try to login to user B - Now have a purple display, need to use the cancel workaround (next login will work) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766137 Title: [regression] Password accepted but login fails (blank purple screen and mouse pointer only) To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/1766137/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs