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I have an Acer E5-574-307M notebook and I have Ubuntu 20.04 installed but it cannot recognize my headset microphone (Xiaomi Piston 3).

I searched the internet and found these possible solutions:

  1. Edit the file /etc/modprobe.d/alsa-base.conf and add this command to the last line: options snd-hda-intel model=dell-headset-multi. However, it didn't work!

  2. rm -rf ~/.config/pulse/ and then restart the pc. However, it didn't work!

  3. Use cat /proc/asound/card0/codec# | grep Codec to find out what the audio codec is and enter in this website to find out what the configuration is (alc255-acer, in my case). After knowing the configuration, enter the command: options snd-hda-intel model=alc255-acer in the file: /etc/modprobe.d/alsa-base.conf and restart the PC. However, it didn't work!

P.S: This notebook only has one P2 input for the phone and microphone.

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This question is possible to duplicate of the question from here -> Headset microphone not working on Ubuntu 20.04 If not, try these steps:

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