Bug#663707: ALSA: Internal speakers don't shut up when I plug in a headset

[Jonathan Nieder <jrnieder@gmail.com>]

tags 663707 + moreinfo
quit

Valentin QUEQUET wrote:

> After having set the 'auto-mute' option using alsa-mixer and took fun wih
> it, I rebooted the machine, and all was just fine : auto-mute still enabled.
>
> Do you still need that I remove  the '/var/lib/alsa/asound.state'
> configuration file in between two full boots?

/var/lib/alsa/asound.state records your mixer settings so they persist
across reboots (see alsactl(1) for details).  That is why I suggested
removing it between shutdown (when they are recorded) and system
initialization (when they are restored), making sure to remove power
so the sound card would not have any lingering state either, to see
what value the "auto-mute mode" control gets for new installations.

If it defaults to false, that would be a bug that we could pursue
upstream.

Similarly, I am still very interested to see what value the
"auto-mute mode" control gets on upgrade from squeeze, hence the
second set of instructions.

Hoping that clarifies a little,
Jonathan