I have a Dell Inspiron 5759 laptop running Ubuntu 20.04.3 LTS. My laptop's internal in-built speakers and microphone works well. But when I plug in my headset(3.5 mm 4-pole [TRRS]), headset output audio works fine, but headset microphone is not working.
As you can see in my sound setting, where there is some response in headset microphone, but it's actually a static noise when I tried to record it.
Please find my ALSA Information Script in case you find it useful to help.
Also find the output for the command lspci -knn | grep -i audio -A2
And output for the command cat /proc/asound/card*/codec* | grep Codec
PS: I'm new to Linux and this microphone issue drives me crazy. I tried a lot of solution and finally came here for help. Thanks in advance!
81 Answer
Right now, the headset microphone is working, and it turned out to be a hardware issue in my laptop's IO board. I disassembled my laptop and cleaned my IO board, and my microphone issue is solved. Thank you!
