From owner-freebsd-multimedia@FreeBSD.ORG  Thu Oct 11 05:59:10 2007
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Date: Thu, 11 Oct 2007 09:44:10 +0400
From: "Marat N.Afanasyev" <amarat@ksu.ru>
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Subject: via8233 and digital out again
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Hello!

i'm curious whether s/p-dif on via8233 is working at all or not. can 
anybody tell me a success story? i've knew that Ariff said 'making 
s/p-dif on via is too trivial than any mammal can do it without making a 
noise' but i suppose i'm not a mammal at all, because i cannot make it 
work :(

freebsd-6.2-stable

pcm0: <VIA VT8237> port 0xa800-0xa8ff irq 22 at device 17.5 on pci0
pcm0: <Avance Logic ALC850 AC97 Codec>
pcm0: <VIA DXS Enabled: DXS 4 / SGD 1 / REC 1>

and

pcm0: <VIA VT8235> port 0xdc00-0xdcff irq 22 at device 17.5 on pci0
pcm0: <Avance Logic ALC650 AC97 Codec>
pcm0: <VIA DXS Enabled: DXS 4 / SGD 1 / REC 1>

no success.

both of mb have coa[ and optical s/p-dif, but neither of them work

turning on hw.snd.pcm0.spdif_enabled leads to shut down analog output only.

-- 
SY, Marat