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

[Takashi Iwai]

At Sun, 19 Apr 2015 19:26:58 +0200,
Gabriele Mazzotta wrote:
> 
> 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.

In anyway, please give alsa-info.sh output.


thanks,

Takashi