[Pkg-xfce-devel] Bug#677514: Bug#677514: xfce4-mixer: not muting pcm and internal mic boost

Yves-Alexis Perez corsac at debian.org
Fri Jun 15 05:30:32 UTC 2012

Please keep the bug on CC:

On jeu., 2012-06-14 at 16:06 -0700, Baruch wrote:
> --- On Thu, 6/14/12, Yves-Alexis Perez <corsac at debian.org> wrote:
> > So basically, when you mute a channel in xfce4-mixer
> > (assuming it's the
> > right xfce4-mixer), it's in fact not muted (wether looking
> > in alsamixer or by hearing it)?
> Yes. Specifically, the pcm and internal mic boost
> Thanks for the prompt response. I do agree that part or all
> of this bug may be some other alsa package 'deeper' in the
> OS that the xfce4-mixer is referring to, but what I see and
> interface to as a user is the xfce4-mixer.
> And you are correct, I was referring to the panel plug-in (I
> have it placed next to the notification area and got
> confused.
> Regards.

I tried to reproduce, and it seems to work fine here, so indeed it might
be related to something else in the stack: gstreamer, alsa or your card

Something I noticed with playing here is that, for example, my PCM
channel cannot be muted in alsamixer (M doesn't do anything). When I
mute in xfce4-mixer, what it does is to set the volume to 0%, which is
seen in the alsamixer UI. Now, when un-muting in xfce4-mixer, nothing is
done, and to get the sound back you need to change the volume so it gets
back “near” where it was before the “mute”.

I'm not sure where the inconsistency lies but it'd be worth trying
something like that on your part: play with both xfce4-mixer and
alsamixer loaded to see exactly what happens.
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