[pulseaudio-discuss] How manage volume remotely on pulseaudio

Matt Garman matthew.garman at gmail.com
Tue Jan 19 18:53:03 UTC 2021

If you can login as your child (i.e., same user account as him) on his
Linux system (ssh with X forwarding), then you should be able to run
"pavucontrol".  Loosely speaking, pavucontrol is to Pulse Audio as
alsamixer is to ALSA.  It's a GUI app.  I'm not sure if there exists a
strictly text equivalent of pavucontrol.

There is also a commandline tool call "pactl".  This would allow you
to control the Pulse Audio daemon on your child's computer without a
GUI (though there is a bit of a learning curve).

On Tue, Jan 19, 2021 at 12:13 PM Christian Schmitz <list at schweb.com.ar> wrote:
> Hi everyone:
> I am in the office with my computer ( Linux tumbleweed), and my kid of 3 years
> old is in another computer showing videos from youtube. Both computer have a
> normal user sound configuration ( each computer playing their own sound).
> Some videos are quieter and another are very loudness. With my first kid (10
> years back) i do:
> 1)SSH as root
> 2)amixer and upper or lower the volume.
> Now i cant find a way to do this with pulseaudio. If i do
> 1)I do ssh as root successfully
> 2)
> 2.1) # amixer
> ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Connection
> refused
> 2.2) # alsamixer
> ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Conexión
> negada (Connection refused in spanish)
> 2.3) if i do sudo to the same linux user that is showing the video:
> user at computer> amixer
> XDG_RUNTIME_DIR (/run/user/0) is not owned by us (uid 1001), but by uid 0!
> (This could e.g. happen if you try to connect to a non-root PulseAudio as a
> root user, over the native protocol. Don't do that.)
> ALSA lib pulse.c:242:(pulse_connect) PulseAudio: Unable to connect: Connection
> refused
> How i can control the sound volume of my kid from my computer?
> Thanks all
> Christian Schmitz
> --
> Be Free, Be Linux
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