I have an older acer machine that has an onboard video card (geforce 9200) w/ hdmi. When I connect it to my sharp aquos and set resolution to 1080p native (1920x1080), it comes up on the tv, however there is a flicker problem. The flicker is like what you get when you change inputs on the tv. It goes black for a second while it looks for the signal, and comes back. While it's in one of these flickers, you lose audio.
When not much is going on and I'm just working on the desktop, it happens maybe once every minute or two. When I'm playing a video and have the system muted, it happens a couple times a minute. When I'm playing a video and have the audio going as well, it happens every few seconds.
I've tried changing hdmi cables, trying different inputs, both plugging directly into the receiver as well as plugging directly into the tv, all drivers are up-to-date.
Does anyone have any ideas on how to correct this? Ideally down the road I'd like to build a custom htpc system from scratch, but don't want to spend the money if I'm going to have hdmi flickering. I don't know if it's the computer or the tv.