Comment # 4 on bug 1182552 from Kim Frederiksen

After collecting the requested info in comment 2, I did a poweroff of the
laptop. Selected kernel 63 during boot - once desktop was up I started MS Teams
and did a test call from within Teams. Headset speakers was working but
microphone was not. I then phoned a colleague, again speaker OK, microphone not
working. Colleague then phoned me back, again, speaker OK, microphone not
working.

I then collected the requested files. After having collected the files,
colleague phoned me again and the microphone was working. At a subsequent call
about 5-7 minutes later to another colleague - the microphone was NOT working
again. Resolved by re-plugging USB headset - extra dmesg output is in file
dmesg-kernel-63-2.txt.

As mentioned - very unpredictable behavior.