Before upgrading from 16.10 to 17.10 I had set no password and configured the system to login automatically (So not even a prompt would appear on which I'd have had to press enter). After the upgrade I'm stuck at the starting screen, where I can select the users, which there is only one of. When I click on myself, the screen changes shades of black for 2 seconds or so and returns to the same login menu. When I click on "Not listed here" and manually enter that same user name, the same happens (I'm not prompted for a password). I can login via the console, though. (Ctrl+Alt+F...) I've restarted my computer from there (sudo shutdown), but I was shown that same welcome screen the next time. How can I make the system "log in GUI wise" after the next boot or is there any other trick?