Re: No sound for several minutes after reboot

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On Mon, 29 Aug 2016 11:20:47 +0200,
Markus Trippelsdorf wrote:
> 
> On 2016.08.29 at 11:16 +0200, Takashi Iwai wrote:
> > On Mon, 29 Aug 2016 11:05:48 +0200,
> > Markus Trippelsdorf wrote:
> > > 
> > > On 2016.08.29 at 10:56 +0200, Markus Trippelsdorf wrote:
> > > > 
> > > > Unfortunately running: hda-verb /dev/snd/hwC0D0 0x14 SET_POWER 0x00
> > > > has no effect.
> > > 
> > > OK.
> > > Running: hda-verb /dev/snd/hwC0D0 0x15 SET_DIGI_CONVERT_1 0x01
> > > fixes the issue.
> > > I have now put this into my startup script.
> > 
> > Oh, then you're using SPDIF output or such?  I missed it from the
> > description.
> 
> Yes, as I wrote in first mail:
> it is a TOSLINK-S/PDIF link to my DAC.

Yeah, now I found it.  It's hidden well like Wally, as if it's a part
of the "aplay -l" output...

> > This should have been set by IEC958 status bits control.  Does the
> > problem exist only after a fresh reboot?
> 
> Yes. And only for a few minutes. After that it gets finally switched on.

Hm, it's interesting who sets this bit at all.  Could you track it via
tracing verbs as described in Documentation/sound/alsa/HD-Audio.txt.


thanks,

Takashi
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