[alsa-devel] Pop noise on startup when headphones are plugged in (Dell XPS13 9333)

[Raymond Yau]

> > >
> > > Hi,
> > >
> > > I've recently found that commit a551d91473 ("ALSA: hda - Use regmap
for
> > > command verb caches, too") is somehow causing a pop noise on startup
> > > when headphones are plugged in, but I couldn't figure out the exact
> > > cause. Was this observed on other systems (mine is a Dell XPS13 9333,
> > > Realtek ALC3661)? Does anyone have any idea of what the cause might
be?
> >
> > Are you sure that the commit is the culprit?  There are lots of other
> > changes like the widget-based power saving.
>
> Quite sure. I did a bisection to get it. 5e56bcea5017 ("ALSA: hda -
> Allow driver to add vendor-specific verbs for regmap") is OK.
> Also, if I revert a551d91473 in the current linux-next tree, the
> startup noise goes away.
>
> > In anyway, please give alsa-info.sh output.
>
> http://www.alsa-project.org/db/?f=7d283ebf64ca750482ec5ed6174a1b860fa70631
>

Did you use headset or headphone since the capture source control is used
to determine the function of multi-role combo jack when the codec cannot
dinstingush headset, headphone and mic jack ?