I've got a couple cheapy LCDs that should work fine, but X has issues with them. If I plug in my old NCR CRT I can set it up for LCD, set the resolution, then swap the cables and plug in the LCDs and they're fine. However if I do anything that restarts the X server, like logging out, it gets scrambled. It doesn't really look like /etc/X11/xorg.conf is the actual config file because it's settings are so minimal and sometimes are outright wrong, like it says the resolution is 800x600 but I can tell it's 1280x1024. With one of my LCDs X insists on setting it to 1024x768 only, even though I'm selecting "LCD 1280x1204" from the list of monitors.
All I want to do is set this up and leave it alone, I don't see why X thinks it needs to rescan the monitors and reset settings that it won't allow me to control.
This is all with F8 and on an Intel G33 motherboard with integrated graphics. Pretty basic stuff.