Ubuntu – Kazam is not recording audio from Logitech USB headset

This is actually a bug in Pulseaudio.

Here is a recent bug report on the situation, but it might be a dupe of this older (but reportedly fixed) one.

Here's a workaround that you could possibly use. Create a text file and paste this in:

#! /bin/bash

amixer cset iface=MIXER,name='Input Source' 1
amixer cset iface=MIXER,name='Output Source' 1
exit

If it is fact your third one then you should replace the end numbers on the commands with the number '2'. If fourth, then '3'. And so on.

You can then make a launcher on the panel and click on it every time you plug in the headset. It's an ugly workaround for now but until it is fixed (i.e. Pulseaudio remembers preferred devices) I don't see much else you can do.

You could do some extreme crazy workaround involving writing udev rules.... but is it worth it? ;)

The issue is due the use of a deprecated python feature. This PR fixes it, so this should be OK if Kazam ever gets updated again.

Anyways, to fix your problem, as I commented here using that PR, you can run

sudo gedit /usr/lib/python3/dist-packages/kazam/pulseaudio/pulseaudio.py

And replace its content with this content.