Yes, I suspected as much. System76 wouldn't ship a laptop without
working audio on Ubuntu.
It sounds like that machine has gone through a couple of upgrades:
DistroRelease: Pop!_OS 18.10
InstallationDate: Installed on 2018-03-05 (230 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
I can't tell what has been broken in the process, but it does look like
pulseaudio since 'pacmd' isn't working for you.
I suggest:
(a) Try to reinstall pulseaudio packages, like:
sudo apt install --reinstall pulseaudio
or
(b) Back up your data and then reinstall fresh from
http://releases.ubuntu.com/18.10/
We may never know what went wrong on the machine before 18.10 reaches
end of life in July 2019.
** Changed in: pulseaudio (Ubuntu)
Status: Incomplete => Triaged
** Changed in: pulseaudio (Ubuntu)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1799007
Title:
[System76 Oryx Pro] no sound after 18.10 upgrade
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