Configuring X to Run on VAIO Desktop LCD Screens?

I_redwolf asks: "I recently acquired a brand new PCV-L640 (Sony Vaio Slim Line Desktop) computer in my office; which comes with a 15.1 TFT LCD screen which I don't care for too much but what the hell you know? One of the first things I did was pop my favorite distribution of Linux into my CDROM and was on my way. I'm trying Red Hat 7 so I give Xconfigurator a spin to cut down or some time. Everything is detected fine except when I try to run X it says it can't find any screens. No biggie, probably my modelines or something. I then spend the rest of the day trying to get my LCD monitor to work with XFree86 v4.0.1a. I've tried every configuration possible but the closest I have gotten is a 320x200 screen with the VGA server and that only shows on half the screen. Where can I find information on setting up an LCD screen. Are there any tutorials/mini-howto's, inside tips, voodoo magic or sacrifices that I must make before getting this LCD to work?"

"My system is comprised of the following:

• Ati Rage Fury PR [8192 vram] (oddly it detects this exactly but there is a `|` between the Fury and the PR eg: Ati Rage Fury|PR)
• 15.5 TFT LCD Screen by Sony the exact model # I don't have right now.
• Coppermine 700
• 128 meg ram etc etc

All help is greatly appreciated."