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Strange loss of audio question

post #1 of 3
Thread Starter 
Hi guys. Recently I've been fighting a situation with my HTPC (in sig for specs) where it will periodically lose audio output. I am using an HDMI cable from my pc to a Denon receiver for both the video and audio. When the audio goes out the display on the receiver states that no signal is present for audio. Oddly, muting the audio on the pc and unmuting sometimes fixes it for a short period. Also, turning the receiver off then back on sometimes fixes it for a short period. Once in a while I lose picture when I use this method.

Things I have tried:

Updating drivers, changing to older drivers, using system restore to before the problem existed. No result.

Removing HD6770 video card and using onboard chipset. Same result.

Swapping HDMI ports on the receiver. Nothing.

Things I am about to try:

Borrowing father's Blu Ray player to hook up to receiver. Maybe the receiver is on it's way out.

Swapping upstairs pc for downstairs one. PITA! I really don't want to have to do this but it's my family's main tv source.

Edit. Just realized an easy test would be to run HDMI from the pc straight to the tv and see if the problem is with the receiver. So obvious doh.gif Still wondering about the other questions.

Purchasing a new receiver. I really can't afford this right now but if it's broke, gotta do it.



A couple of quick questions I have. If I'm using a video card with HDMI out, does it use the MB's onboard audio for processing? Does the card have it's own processor? If the video card is using the onboard audio from the MB, if a sound card is added in can it be output through the HDMI on the graphics card?

Thanks anyone for your help. This problem is driving my wife nuts. She's got no problem throwing money at it but I do.
Edited by Cavey00 - 6/4/13 at 10:07am
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post #2 of 3
Video cards have their own sound card hardware built into the GPU. They did, at one time, actually connect to the SPDIF connector on a sound card or motherboard via a cable, but they haven't been like that since the Radeon 4000 series. Adding a soundcard will do nothing for the HDMI output.

I'd definitely try it straight to the TV before buying a new receiver.
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by kevmatic View Post

Video cards have their own sound card hardware built into the GPU. They did, at one time, actually connect to the SPDIF connector on a sound card or motherboard via a cable, but they haven't been like that since the Radeon 4000 series. Adding a soundcard will do nothing for the HDMI output.

I'd definitely try it straight to the TV before buying a new receiver.

Been testing on the TV for a day now and no issues. Turned the receiver on yesterday and when there was loss of audio the volume knob did nothing either. Switching inputs would temporarily bring sound and volume response back. Receiver is dying mad.gif Oh well, my in laws have one they are not using that they are going to lend me thumb.gif

Thank you for the info on the graphics card audio. I thought I had come across a thread where people were installing sound cards and outputting the sound through HDMI but I could have read that wrong. I'm no audiophile. I do know I hate those tv speakers and need to hook up that receiver promptly!

Thanks again!
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