I am attempting to use Fedora on a laptop with a broken screen connected to an external monitor. At what I assume is the login screen, I only see a solid grey screen. I am unable to log in because the computer is displaying the login box on the broken screen. Strangely, Fedora automatically mirrored the screens when I was booting from a live disk. Is there anyway I can change the monitor settings without logging in?Extra information: Fedora 18 GNOME, lenovo ideapad U350.
Change monitor settings before gnome login
fedora;xorg;gnome;dual monitor