|Ivy Bridge HDMI to TV Sound Issues:|
I have a self-built HTPC running Windows 7 Pro x64 with an ASUS 1155 motherboard and Intel iCore 5-3570K "ivy bridge" processor. Previously I was using a Zotac motherboard with an iCore5 "sandy bridge" processor but had to replace the motherboard 3-4 months ago. With the "sandy bridge" processor I was not having any HDMI sound issues. However, ever since rebuilding that PC with the new motherboard and "ivy bridge" processor, I have had nothing but trouble getting HDMI audio to work consistently.
The HDMI output from the motherboard is connected to one of the HDMI input ports on my Denon AVR-4210CI receiver and the HDMI output from the receiver is directly connected to my Samsung 55" LED-LCD TV. This is exactly the same setup I used previously with the "sandy bridge" processor and which used to work perfectly. I use a Harmony 900 remote to switch between my various setups. When I switch to my "HTPC", the receiver turns on and automatically switches to its "DVD input" which is the one my computer's HDMI cable is connected to, and the TV turns on and switches to the approprpriate HDMI connection. The HTPC is always on. In the control panel, my sound playback device is set to the "Denon Receiver" as it should be. I also tried disabling all of the other playback devices which did not help at all.
Now, with the new motherboard, getting HDMI sound to work is a major and very frustrating problem. For example, if I start media player, there is oftentimes no sound initially. To get the sound working, I have to go to "Configure" the playback device (i.e., the receiver) and change the speaker type setting from the "5.1 sound (with rear speakers) to "any" other setup such as "stereo". When I select "stereo", I usually get a message that "another device is using that playback device" and I have to click OK to "grab" that device. After doing this, then I can test the speakers and they will usually work. I can then change back to "5.1" and that will also be working now. Then I can go back to media player and any songs will play.
If I then close media player and open Windows Media Center (there are no video issues) and try to play a movie, I will usually have the same issue as with Media Player. I, once again, have to change the speaker settings to get the sound working, and then change back to the "5.1" setting. Then, the movie will usually start playing with sound. If I'm trying to play a BlueRay disk with BD Live content, the BD Live will play with sound "until" it finishes and the screen to start the movie appears. When, I start the movie, once again, there is no sound. I have to go back to the speakers settings once again and change the settings to something else and then back to "5.1". Now, usually, the movie will play. And the next time I want to play or watch anything, I pretty much have to go through the same process.
All of this is absolutely ridiculous. I just can't believe that the HDMI sound is such an issue. I have spent weeks trying to resolve this problem, including searching through any and everything I could find on the internet -- to no avail. I have not found anyone else with a situation exactly like mine. I've found lots of HDMI sound problems on the internet but most of them can be fixed "for good" without a whole lot of effort. I'm totally lost on this one. Any help that anyone can provide would be greatly appreciated. Thank you.