I recently acquired a G-Vision S5FX-TA-C 15" LCD XGA touch-screen. It was in VERY sorry shape when I dug it out of the pile of misc stuff, suprisingly not from Surplus Exchange. It had a shattered 3M touch-screen, which is why it was in the pile, I'll bet. I hooked it up to a 12v feed from a PC p/s (it is claimed to need 12v@5A!) and tried it out w/ said PC. Worked great, except for the nicks and scuffs from the broken touch screen that I have removed, and a single pixel blue line down the very left side. The real problem is that when I plug it into a Mac, the backlight shuts off. It didn't have any trouble on a PC at all. If I jack into my iBook, the LCD shows the image but the backlight cuts out after about 1 sec. Same on a Beige G3's stock video. I have yet to try the out put of the stock ATI card in the Power Computing Power Wave 120 I just got, but I'm assuming it might have the same results.
Any ideas, tips, pointers? It's perfect for hacking, if I could get it to work with a Mac. If not that sweet 15" of LCD goodness will be stuck on a PC hack.