Bug#787099: pulseaudio: Output is muted when headphones/speakers are plugged in

[Martin Erik Werner]

On Sun, 2015-05-31 at 18:17 -0300, Felipe Sateler wrote:
> Control: forwarded -1 https://bugs.freedesktop.org/show_bug.cgi?id=90491
> 
> (...)
> 
> This looks like the same as the upstream bug
> https://bugs.freedesktop.org/show_bug.cgi?id=90491
> 
> Could you please confirm that? If so, this is an alsa bug and not a pulse bug.

It is similar, but not exactly.

In my case "Speaker+LO" goes to zero as in the upstream bug, but in addition it
and "Master" are also muted when I plug in headphones, and the "Headphone"
slider is not unmuted.

If I then unmute all three and correct the "Speaker+LO" volume, I can use the
headphones, but if I then unplug them, all three sliders are again muted, and I
need to unmute "Master" and "Speaker+LO" for the internal spekaers to work.

If I plug in again without adjusting so the internal speakers work, then when I
plug it back in, only the "Speaker+LO" slider is zeroed and unmuted, the
"Master" and "Headphone" seems to go to a reasonable state.

If I fix the internal speaker volume it then return to the starting case.

The previous behaviour was that seemingly the volume and mute settings were
saved as two independent states with plug in/out, but I do not know the
specific states/changes of the sliders at that point.

Given the similarity to the issues described in the upstream bug, I'd guess
it's related, and likely an alsa bug rather than a pulseaudion one.

-- 
Martin Erik Werner <martinerikwerner at gmail.com>