[K0D1User1138]

2 questions. Your sig says you are using HDMI 1.4 for audio but HDMI 2.0 for 4K and 3D? Is that correct? And if so, why a different HDMI for audio?

Second, I am trying to set-up an Optiplex360 (older workstation style PC I got from a friend) and can't get RealTek HD Audio to install. The Windows driver won't do lossless audio passthrough. Does the windows driver you are using do passthrough fully?

As it says in my sig., the 1.4 output is for the HD-audio formats, my TV (and most) don't pass trough HD-audio, DTS is the max in most cases.

Your Optiplex seems to be pre HD-audio era, DD & DTS max (if I'm not mistaken), with the Intel® G31Express Chipset and Realtek alc888 audio? Beside that, you can't use a driver that isn't compatible with the on-board hardware. 

 How are you using 2 HMDI outputs? I mean, what is your setup? Apologies if it seems "simple" but I'm not visualizing it. 

I was hoping to use the Optiplex for my dad's set-up to replace a slow and very frustrating Raspberry Pi. He has a lossless receiver and 3D Panasonic Plasma. Trying to find information about the hardware is tricky though. And thus far I've not seen a video card option that accomplishes MVC 3D, or am I mistaken?

I've also always had issues getting RealTek to install on the set-ups I've built, MVC or otherwise, as the Windows default (and not lossless) codec likes to push it's weight around.

Would upgrading to this new Leia build help things out? I'm looking at experimenting with it but my access to 3D is more limited unfortunately. My display purchases fell between the just barely pre-3D to the current 3D Hahahaha stages of retail. Despite just watching The Grinch in 3D and it was fantastic.