Has anyone been able to get the display to go to sleep with a Radeon 4870?
Mine doesn't seem to, nor can my machine wake from sleep (after waking, the display never turns back on).

Has anyone had similar issues? I'm using ATY_Init and PC EFI 10.5 to get it to run. I'd love a DSDT solution for my EP45-UD3R, but I'd settle for anything now.