What are you trying to bitstream? Does the DAC support it?
5.1 on an HDMI connection may not be possible.
Is the HDMI port on a video card? Does it support the format?
I'm trying to bitstream the 5.1 audio from ripped blurays. They all work using passthrough from a Mede8er STB. My receiver is quite old and optical / spdf audio only but can decode DD and DTS 5.1.
The output is from my NUC6 hdmi with Intel HD audio which supports up to 7.1 channels but I appreciate optical only supports up to 5.1 and not the HD streams. No problems with music (stereo).
I'm guessing MC might be selecting a 7.1 HD stream and then finding it cant be played, although if I select a 7.1 channel passthrough on the Mede8er, most often my receiver can cope with it (downmixing it?). I have had some success with ripped dvds that only have low res 5.1 or even 2.0 streams.
I've had no luck setting 5.1 channels in MC and using DSP - just get error messages and the video not even starting. I'm not sure why MC refuses to start the video as the hdmi is plugged into my TV which then passes the signal via optical out. Same path works with the Mede8er.
Is there anyway I can force MC to play using a particular stream?