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Date: Fri, 6 Jun 2008 22:29:45 +0400
From: Andrew Pantyukhin <infofarmer@FreeBSD.org>
To: Alexander Popov <aopopov@yahoo.com>
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Cc: freebsd-multimedia@freebsd.org
Subject: Re: hwac3, AC3 passthrough
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On Fri, Jun 06, 2008 at 10:47:43AM -0700, Alexander Popov wrote:
> Hi,
> For a few days already I've been trying to get mplayer to
> output on S/PDIF, but no luck... Could anybody help?
> 
> - I've got Trust SC-5250 sound card (CMI8738 chip) that works
> fine in stereo mode with snd_cmi driver

FWIW, I've got a number of motherboards with via8237 built-in
audio. S/PDIF (pass through and otherwise) only works with
audio/oss from ports. Maybe you should give it a try.