F17: what replaces xorg.conf??

[Bruno Wolff III]

On Sat, Aug 25, 2012 at 16:59:35 +0000,
   Beartooth <beartooth at comcast.net> wrote:
>
>	One of my F17 machines hardly ever manages to boot. It's an old
>Dell PowerEdge SC1420, and it did fine with all the previous Fedora
>releases, and fine until recently with F17. Now it hits the monitor's
>error message "input signal out of range."
>
>	But sometimes, if I leave it long enough, it does get to the login
>screen, and after that works normally.
>
>	Time was when I'd've tried editing some configuration file in /
>boot/grub or /etc/X11; but the only such I can find now start with "Do
>NOT EDIT" -- so I'm out of my depth.

If your monitor has problems with EDID (I have a few that do), then you'll 
want to provide an xorg.conf file that provides appropriate mode information.