At Sat, 18 Aug 2007 14:31:35 +0000 (UTC),
Zig wrote:
>
> Matthias Dahl <ml_alsa <at> mortal-soul.de> writes:
>
> >
> > --- patch_analog.c.orig 2007-07-23 22:44:25.000000000 +0200
> > +++ patch_analog.c 2007-07-23 22:45:15.000000000 +0200
> > <at> <at> -2037,12 +2037,8 <at> <at>
> > static struct hda_verb ad1988_spdif_init_verbs[] = {
> > /* SPDIF out sel */
> > {0x02, AC_VERB_SET_CONNECT_SEL, 0x0}, /* PCM */
> > - {0x0b, AC_VERB_SET_CONNECT_SEL, 0x0}, /* ADC1 */
> > - {0x1d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0)},
> > - {0x1d, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
> > /* SPDIF out pin */
> > {0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE | 0x27}, /* 0dB */
> > - {0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0) | 0x17}, /* 0dB */
> >
> > { }
> > };
>
> >
>
> I had similar issues, however patching the file as shown above caused no audio
> output at all on the SPDIF unless it was in AC3 passthrough mode.
Then it must be a usage error. In the ALSA system, the same stream is
used regardless of audio or non-audio data.
It might be that you set non-audio bit permanently. Verify with
iecset program in alsa-utils package.
Takashi
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