[ltp] Enabling lower screen resolutions?

[Juergen Botz]

I have a T61 running Fedora 12, but this would seem to be a general
laptop issue...

When I run certain lower resolution games that have a fullscreen
mode (i.e. freedoom) they just come up at as a small centered area
with the rest of the screen black instead of taking over the screen.

I'm guessing that's because the X server doesn't know about any
other modes than the one with the native screen res.  My system
doesn't have an xorg.conf file... do I need to create one and actually
put in modelines (like in the bad old days?)

Thanks,

:j