Originally Posted by Andreas_X
Might as well try here as well...
Long story short:
I recently upgraded my old NAD 5.1 amplifier to a RX-V1900, and at the same time went from an old Premium Xbox 360 to a new Slim (hooked up via HDMI).
This has caused a strange audio bug to occur, whereupon the audio from the Yamaha disappears for a split second at random intervals (sometimes several hours) when playing games. When the dropouts occur, the Dolby Digital icon on the amp display flashes briefly as well - possibly indicating some sort of signal loss...
I guess I'm looking for other people who have an Xbox 360 hooked up to a V1900, as well as general advice/feedback...
Although I have the RX-Z7 I am experiencing the same problem between it and my TiVo. My 360 Elite does much better, but is not 100% bullet proof; dropping out & popping a few times each game session.
I had a good 3 way call between TiVo, Yamaha, and myself. My opinion, this is a Yamaha problem, period! While it is true that the Yamaha only reacts poorly when the other device throws it a curve in the HDMI signal stream, there are many many lesser HDMI receivers that handle them without issue.
Here's the point that leads me to wholly blame Yamaha and not the other device. If you look at the HDMI specs on the Yamaha, you will see that they never claim it to be fully HDMI 1.2 compliant. What they say is that it is "BASED ON the HDMI 1.2" standard. This means to me that went cheap on the HDMI chips and we are all now paying the price. If it were 1.2 compliant, not only would it not produce these unacceptable dropouts & static POPS, but it would also pass 3D with a simple firmware update. (The much older HDMI on my original 60Gb PS3 has no problems doing so.)
To add insult the Yamaha tech tried to state that this "higher end equipment had stricter manufacturing tollerences & that the TiVo simply wasn't able to hold its output voltage within these limits... and that this was done to "REDUCE WHITE NOISE THAT WOULD BE PRODUCED IF THEY HAD NOT" BS!!!
That's like Ferrari producing a car with little or no steering then blaming the road when it crashes on every corner. (Then claiming the advantage in this design because the tires never screeeech on the corners!)
After researching further I've found TiVo threads going back for years pointing this incompatibility out, yet if you contact Yamaha they act totally caught off guard like they've never heard of such an issue.
I have found no good answers to this. I'm hoping for some device to pop up that will monitor the HDMI bitstream & "fix" the conditions that cause this, but no simple signal booster etc has been effective. (I wouldn't expect them to help) Some BluRay players offer 2 HDMI outputs, one can be used for the audio and one for the video & this seems to solve many issues, but until some intermediate device (affordable) can do the same from a single source, well, you can only do what many of us are doing which is switching to PCM output and losing our 5.1 sound. Anyone with better information? I'm all ears!