[Bug 1821194] Re: [nvidia] Screen frozen after switch to other tty and do login & logout

** Description changed: To simplify reproduce steps, one only has to: 1. install (tested so far) Ubuntu Bionic 2. switch to other tty by pressing Ctrl+Alt+Fn 3. login and logout Then it should try to switch back to GDM (no matter you have logged in GUI or not), triggers vt-switch bug

[Bug 1821194] [NEW] Screen frozen after switch to other tty and do login & logout

Public bug reported: To simplify reproduce steps, one only has to: 1. install (tested so far) Ubuntu Bionic 2. switch to other tty by pressing Ctrl+Alt+Fn 3. login and logout Then it should try to switch back to GDM (no matter you have logged in GUI or not), triggers vt-switch bug and lock up.