the microphone can’t be detected on a co…” : Bugs : linux-oem-5.14 package : Ubuntu

We plug a microphone in the audio jack, but the driver can’t
detect the microphone and we try to record sound via this mic,
can’t record any sound.

Backport one patch from upstream.

Booting the patched kernel, open the gnome-sound-setting, plug a microphone,
we could see the system detect the microphone, and use this mic to record
sound, the sound is recorded successfully.

[Where problems could occur]
The change only applies to the specific machines with those SSIDs, it will
not introduce regression on other machines.

Read more here: Source link