[mythtv-users] SPDIF surround broken in trunk

Jean-Yves Avenard jyavenard at gmail.com
Tue Jul 13 09:12:19 UTC 2010


On 13 July 2010 03:15, Greg Woods <greg at gregandeva.net> wrote:
> ...at least for me. Ever since I did an "svn up" last weekend, surround
> sound no longer works for me. I also updated to 25327 yesterday; same
> problem.
> This is the card I have:
> 01:08.0 Multimedia audio controller: C-Media Electronics Inc CMI8788
> [Oxygen HD Audio]
> It has analog individual speaker surround outputs, but I am using SPDIF
> passthrough to my amp.
> What happens is that SPDIF works, but it's stereo only. If I go into
> Setup -> General and go to the audio page, then scan for audio devices,
> the only device that comes up that has SPDIF output listed only supports
> 2.0. The analog surround outputs are found and are said to support 5.1,
> but I don't know if they would work because I have nothing connected to
> them, but SPDIF is now stereo only.

You must check AC3 and DTS, once you've done so, select 5.1 in the
speaker configuration drop-down list.
Note that passthrough is only available for ALSA, not pulseaudio if
that's what you are using

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