I have an Asus A8N-VM CSM motherboard with integrated SPDIF. The audio
is driven my an AD1986a chip which uses the snd-hda-intel alsa driver.

I can get knoppmyth to output PCM stereo audio over the SPDIF cable, but
I can't get AC3 pass though to work. Hence playing DVDs just results in
Stereo audio.

Has anyone got AC3 to work with this chipset.

At the moment i'm using alsa-driver-1.0.11rc2 with a couple of patches
to fix the annoying buzz you get with a 2ch stereo signal. I don't know
the alsa code well enough to know if this has broken the digital support.

I've also tried a couple of variants on a .asoundrc which haven't made a
difference.

Any tips/pointers.

Steve


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