I am currently using Pop!_OS version 22.04 LTS. I was trying to get on a Discord call with a friend, but he couldn't hear me. I later discovered that it would detect audio out as the input.
I went to settings to find out that it was not detecting my headphone mic for the input, even though it said it was. I tried everything online from using pavucontrol, hdajackretask, alsamixer, and resetting the audio manager, following instructions on the Pop!_OS audio page. After doing this, it doesn't detect audio at all, and there is no system audio either. Under pavucontrol it shows that it is plugged in (which it is), but no audio from the mic.
Nothing seems to work, and the only way to use a mic is to plug in a USB-C headset with a built in mic. Is there any way to resolve this?