[mythtv-users] SPDIF output

[Jared Luxenberg]

I have a VIA VT8233 sound card built into my VIA KM400 motherboard. It has a SPDIF output port that I'd like to use. I am using version 0.9.8-13 of the ALSA driver (snd-via82xx) that is packaged by ATrpms. If I try this:
mplayer -ac hwac3 -ao alsa9 -vo null /var/vids/test.vob

then it outputs the ac3 encoded audio track of the VOB file to the receiver through the SPDIF output.  This also works:
aplay -Dplug:spdif /usr/share/sounds/KDE_Startup.wav

However, watching live TV or playing back recordings in MythTV produces no sound on the SPDIF output (it does produce sound on the analog output).  How can I get all sounds to play through the SPDIF output?

Thanks,
Jared
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