I have some problems with my ASUS HD 5770 with sony 42' LCD TV. The first I connect my pc and the TV by HDMI cable, it works all good, the tv image looks all right. But after I connecting my PC to the TV(by HDMI) and my monitor(by VGA) at the same time. The TV image suddenly became blurry after a while. After that no matter how i changed TV or pc display settings, the TV image was always blurry even if I connect it only. And the wrost thing is that, after windows startup, in login screen, the tv will be no display and show 'out of range' error.
I found that this only appears during windows loading screen and it looks ok during displaying BIOS info. I have tried linux too, and I have the same blurry image but no 'out of range'.
Is it the TV not compatible with the graphic card or something?