[alsa-devel] No sound from internal speaker on 2013 Macbook Air 6, 1

Takashi Iwai tiwai at suse.de
Mon Sep 9 16:08:57 CEST 2013

At Mon, 9 Sep 2013 23:26:11 +1000,
Ian Munsie wrote:
> Hi Takashi,
> > OK, then try the patch below.
> Great - that patch seems to do the trick, the speakers now are working
> perfectly :)
> One question - what is supposed to be responsible for muting the
> speakers with the headphones plugged in? I can switch between
> headphones and speakers with pavucontrol which works fine (alsamixer
> shows it simply mutes the speaker control when headphones are
> selected), but the speaker is not being automatically muted when
> headphones are plugged in - is that something that the driver is
> supposed to handle, or is that a userspace problem?

The speaker should be muted.  But better to check without PulseAudio,
as the recent PA itself may do the automute by checking the jack state

In anyway, give alsa-info.sh outputs before and after plugging the


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