Actually, my main goal was to have both Eyefinity (three monitors) as well as HD Audio, not Eyefinity with 6 monitors.
In my particular circumstance, it is not possible. My three monitors only have DVI-D ports, no HDMI. And even if I did utilize one of the HDMI ports (instead of one of the DVI-D ports), I don't believe I would be able to have Eyefinity (as I believe I would then have to output to the receiver then to one of the monitors which most likely wouldn't work - I would be surprised if it did).
I was hoping on the slim chance that the HDMI port would pass audio even though it has been stated that the HDMI port would be inactive when the other three ports (the DVI-D ports and the displayport) are utilized. I don't know why I thought it might. I suppose I wasn't thinking straight.
I was aware of the restrictions of bit-streaming, but perhaps do not understand the theory as well as I would like. In this particular case, say that all four ports were to work and that HDMI was active (this is a hypothetical to help my understanding). If I was not using the HDMI for video (that is it wasn't connected to my monitor(s)), and I was simply to output the directly from the HDMI port to my AVR, would I still experience EDID problems (since there wouldn't be a monitor to conflict with the receiver)?
As it stands right now, in my current setup, I cannot bitstream HD Audio to an AVR (once again because my HDMI port is inactive). I thought about using an AzuenTech HD theater card, but it requires HDMI input from the video source. Once again, impossible for me as my HDMI port is inactive. I am unaware of any other card that would support Dolby® TrueHD, DTS-HD formats.
So I thought about getting another, lower-end ATI 5xxx card with HDMI to add to my setup. It would not be part of the Eyefinity (as it would not be connected to any monitors) and it would not be crossfired (as it would have to be identical to the other card). Using this card I was thinking of outputting the HD audio signal to an AVR.
Does anyone think this to be possible? Apparently I can add a different card that isn't in crossfire mode and it will work while having no effect on the Eyefinity setup. I would assume a second HDMI connection would show in the sound control panel. Attaching an HDMI cable from that card to the AVR I would assume show it to be active. I am uncertain if it would appear in PowerDVD 9 Ultra.
Once again, since the HDMI port would not be connected to a monitor, simply connected to my AVR, would I have any EDID problems?
I apologize if some of these questions seem ludicrous as well as repetitive. I have read many posts but none seem to answer my questions exactly nor are related to my particular situation.
If there is a thread that would aid in my understanding of EDID's (I have not found it yet, just threads on problems and solutions) feel free to direct me to it. Perhaps I could answer my own questions and not encumber others.