I had trouble finding the solution, so I thought I'd add a post with it.
Last week I had occasion to make a zoom call on my work laptop, and the internal microphone didn't work. I've used it in the past, maybe last year. Today I noticed that the little light on the F4 key that shows the microphone is muted was on, but pressing it did not turn it off. There was no recording device showing in the "Configure Audio devices" or "System settings - Audio", nor input devices in pavucontrol.
After trying a lot of things, from a post in the "Linux Mint Forums" I learned to first run
From this I noted the name "alsa_card.pci-0000_00_1f.3". Then I could run
and then the microphone came back, showing in the audio devices, and the F4 button works to mute and unmute it.
Last week I had occasion to make a zoom call on my work laptop, and the internal microphone didn't work. I've used it in the past, maybe last year. Today I noticed that the little light on the F4 key that shows the microphone is muted was on, but pressing it did not turn it off. There was no recording device showing in the "Configure Audio devices" or "System settings - Audio", nor input devices in pavucontrol.
After trying a lot of things, from a post in the "Linux Mint Forums" I learned to first run
Code:
$ pacmd list-cards 1 card(s) available. index: 0 name: <alsa_card.pci-0000_00_1f.3> driver: <module-alsa-card.c> ...
Code:
pacmd set-card-profile alsa_card.pci-0000_00_1f.3 output:analog-stereo+input:analog-stereo
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