[alsa-devel] No sound for several minutes after reboot

[Takashi Iwai]

On Mon, 29 Aug 2016 16:02:33 +0200,
Markus Trippelsdorf wrote:
> 
> On 2016.08.29 at 14:06 +0200, Markus Trippelsdorf wrote:
> > On 2016.08.29 at 11:32 +0200, Takashi Iwai wrote:
> > > On Mon, 29 Aug 2016 11:20:47 +0200,
> > > Markus Trippelsdorf wrote:
> >  output:ALSA def-222   [003] ....   422.035002: hda_send_cmd: [0000:00:14.2:0] val=0x01570d01
> >  output:ALSA def-222   [003] ....   422.035061: hda_get_response: [0000:00:14.2:0] val=0x00000000
> 
> Actually it right here that sound starts again:
> 
> markus at x4 hda-emu % ./a.out 0x01570d01
> raw value = 0x01570d01
> cid = 0, nid = 0x15, verb = 0x70d, parm = 0x01
> raw value: verb = 0x70d, parm = 0x1
> verbname = set_digi_cvt_1

So, the program itself sets the value.  Which sound backend are you
using?  PulseAudio, whatever?

Basically you need to track the verb 0x01570dXX that changes the
digital converter parameter.

When the driver was loaded and initialized, what value does the node
have?  Also check the raw ctl elements, too.  The value is controlled
via "IEC958 Status" controls.  If the value at the init time is wrong,
you may set the initial value via "iecset" program included in
alsa-utils.


Takashi