Ubuntu 20.04 Internal Microphone is not working. Input Device drop-down menu is empty in Sound settings

[GitHub issues - edited <github@xxxxxxxxxxxxxxxx>]

alsa-project/alsa-utils issue #49 was edited from ReyanshKharga:

[Link to question](https://askubuntu.com/questions/1262607/ubuntu-20-04-internal-microphone-is-not-working-input-device-drop-down-menu-is)

Issue URL     : https://github.com/alsa-project/alsa-utils/issues/49
Repository URL: https://github.com/alsa-project/alsa-utils