Display flickering, need help spliting HDMI signal

[vicviper789]

Hello, I am pretty decent with computers but not an expert. I am having a little trouble with my home theater PC display flickering. My video card is a Radeon HD 6900 and the drivers are up to date. I have the HDMI out of my PC going to an Onkyo 7.1ch HT-R590 receiver and it's output going to my LG 42" TV. My OS is Windows 7 Ultimate X64.

The system used to work perfectly fine but over time the display started to flicker at random times. I tried to hook my PC directly to my TV and it works perfectly fine, so I am 100% certain the problem is in the receiver. I did a bit of research and it appears to be a problem with my receiver over heating. I placed a 120mm fan on top which helped some but the problem is still there.

Now, if I run my HDMI to my TV, I cannot use 7.1ch surround sound. (Even after playing with Audio Return Channel) If I run optical to the receiver, my video card only puts out 5.1ch surround sound for some weird reason. So I did the next obvious choice, I ran a DVI to HDMI to my TV for video and HDMI to my receiver for audio. I thought it would trick it into thinking there was two displays but this does not work, I do not get audio.

I was wondering if you guys knew of any utilities that would allow me to output audio on one HDMI stream and video on my DVI port. I did a lot of looking around and it looks like DMCA calls for HDMI to be encrypted and you can't separate the stream. Or would I just be better off getting a separate audio card to connect to my a/v receiver?

Thanks!

 

[kegobeer]

No, as far as I've heard/read, you can't circumvent DMCA - HDMI either carries HD audio and video, or it just carries video and you have to output audio via toslink/stereo from your computer to your receiver.

Have you cleaned your receiver, ie: used compressed air to remove the dirt and dust? Have you considered sending it in for repair?

 

[vicviper789]

I have cleaned it out, there wasn't much dust in to begin with. Sending the a/v rx in for repair is a last ditch effort for me. It's just a PITA.

 

[AddRAM]

Just use the optical cable. There is no such thing as 7.1 yet. The 2 other channels are pulled from the 5.1 source. Do you have a playstation or a blueray player running through the receiver ? If so do they function properly ?

 

[kegobeer]

Just use the optical cable. There is no such thing as 7.1 yet. The 2 other channels are pulled from the 5.1 source. Do you have a playstation or a blueray player running through the receiver ? If so do they function properly ?

Of course there is 7.1 HD audio. There are over 90 BD titles with it. And that's not correct anyway - 7.1 is not simulated by somehow remixing a 5.1 source. The only way you have 7.1 is if there are rear and surround tracks.

Perhaps you are thinking about 5.1 HD audio sources, played through a 7.1 receiver connected to 6 speakers and a subwoofer?