I've spent two weeks trying to get 7.1/5.1/stereo to work correctly with all hdmi signals, and to play nice with the tv's, bluray, dish, pc, wd, ps4 and 727. I have all but given up. With the death of analog video and audio outputs on the receivers, one is at the mercy of the copy protection and all the other evil and automatic things hdmi does in the background. All of my problems are audio related, especially with the conversion/non-conversion of stereo to surround back to stereo tor silence between tv's and components. I fear the only solution is multiple receivers, or buy an older model that isn't stripped down to hdmi. Good luck.
Thanks AVjohn - I still am having no luck but I do know a bit more.
I can connect the PC to the 626 via optical and the signal is stable (i.e. no random clicking from the receiver as it moves from 2.0 to 5.1). The optical is capable of carrying 5.1 as when I test the speakers it switches to 5.1 and plays the appropriate sound from the appropriate speakers. The only trouble is that when I run a program capable of outputting 5.1 it doesnt reach my speakers - for example Portal 2 just shows 2.0 as the output even when I've selected 5.1 in options. Frustrating as I'm not using the full capability I paid for.
So, back to an HDMI connection. When I select to use the HDMI connection from my graphics card and load Portal 2 I get 5.1 sound as an input and an output and it is stable - great. However, as soon as I go back to windows I get the clicking and switching between output and input formats. Very frustrating.
I really want to use the HDMI audio from my graphics card as it is the simplest and most capable solution. Failing that, I will settle for using optical but very much want it to use 5.1 whenever possible (which it isnt at the moment). I also don't want to be in a situation where I have to switch the audio output on the computer and restart computer and receiver everytime I go from playing a game to simply using the computer.
Is there anyone that can help? I have run out of ideas and running out of patience!