Public bug reported: Affects: gdm (Ubuntu) Severity: Normal Priority: (none set) Status: Unconfirmed Description: When I attempt to: Kill/restart GDM Log out from GDM Switch Users There is a kernel panic. It is not recorded anywhere in /var/log. It is possible that there is a display driver problem (fglrx) -- Kernel Panic https://launchpad.net/bugs/40846