QUOTE(binkky @ Dec 11 2007, 10:12 PM)

File this under crap.
Tried a second HDMI Xbox 360, same issue. If I set the receiver to not decode it works but only in 2 channel stereo, not 5.1. If I let the receiver code, it's either no sound or buzzing.
Contacting Yamaha, or getting a new one.
Thanks for the help all!
-DJ
I have a Yamaha HTR-5990 and it does the exact same thing. I sent an email to Yamaha and they responded that they are not familiar with the problem, but something tells me they should be. I can get 5.1 sound on games, but after I put in a DVD - I get nothing and the games go back to 2 channel. It has been very frustrating even though I bypass the whole issue by using HDMI for video and then Optical for sound.
QUOTE(nmoore41 @ Feb 16 2009, 11:43 AM)

Has anyone found a resolution to this issue? I am experiencing the same problem w/ HDMI going through my Yamaha RX-V2600. I have a 360 Elite, w/ HDMI out from the XBOX to the 2600 and HDMI from 2600 to my Mitsubishi 62 DLP. The XBOX Live Screen and games have great audio/video; however, any video played from XBOX Live Marketplace has the high pitch fire alarm sound and no audio from Recorded or Live TV through my Media Center Extender.
I have plugged the original XBOX HDMI cable directly from the 360 to the TV and that works fine (audio works in above scenarios). I have also plugged my 16 HDMI Monster cable in from the 360 to the TV and that works fine as well. Given this, it seems it is a Yamaha issue.
If anyone has found a resolution, please post.
Thank you!
Just to let you know, you are not alone in this exact problem. Unfortunately I did not find a solution yet. If I connect xbox direct to TV - no problem but also no surround. If I connect it via Yamaha, well... the issue you describe.