Good catch. The description of the behavior is very similar. Following a review of that thread, I did some more testing. Below are the findings:
Reboot the system Attempt to log into 'Ubuntu' session Screen goes black for 2-3 seconds and returns me to login screen Attempt to log into 'Ubuntu on Xorg' session Login succeeds and session starts normally Log out Attempt to log into 'Ubuntu' session Screen goes black for 2-3 seconds and returns me to login screen Attempt to log into 'Unity' session Login succeeds and Unity session starts normally Log out Attempt to log into 'Ubuntu' session Login succeeds and session starts normally So, it appears that I can log into either Unity or Ubuntu on Xorg after a clean reboot without issue. However, I can only log into a Ubuntu session if I have first logged into a Unity session, then logged out. Logging in to Xorg doesn't help. Attached is a new debug syslog that should capture the entire sequence. The login attempts should start at the 'Oct 25 15:32:39' timestamp. ** Attachment added: "syslog_Xorg_Ubuntu_Unity_Ubuntu.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-desktop/+bug/1726192/+attachment/4995347/+files/syslog_Xorg_Ubuntu_Unity_Ubuntu.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726192 Title: 17.10 Login To Wayland Fails Unless User Logs Into Unity First To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-desktop/+bug/1726192/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
