I fixed it adding this to the end of /etc/modprobe.d/alsa-base.conf
options snd-hda-intel dmic_detect=0
options snd-hda-intel model=alc233-eapd
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https://bugs.launchpad.net/bugs/1926220
T
Public bug reported:
I dont know what happened but today I plugged my headset with mic and
didnt work. I can only listen audio but the mic from the headset is not
recognized, it was before. Ubuntu only recognizes the internal mic.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: alsa-base 1.
