That's awesome DTS-HD MA passthrough is working for you! I've tried absolutely every setting and combination of settings and just can not get it to passthrough to my avr BD passthrough is flawless so my hdmi and avr are fine. could you possibly post a screenshot of your audio settings or walk me through any special tips? Regular dts, the passthrough works fine, just not with hd audio.. However, using PCM sound IS playing on my surround speakers, something spmc or any other media center isn't able to do, it's always just pcm stereo. So if I'm hearing surround sound in pcm, and the movie is showing dts-hd ma audio, I should be good to go, ya? Or is it a trick?
Navigate to System - Audio:
Check that your Audio Device is set to "ALSA: AML-M8AUDIO, HDMI"
Set your speaker config to 5.1
Enable Passthrough
Enabel all audio standards, your AVR can support.