Public bug reported:

After updating some packages which included a new version of kernel
(5.8.0-44-generic) the internal microphone of my Lenovo Yoga Slim 7 does
not work anymore and it doesn't seem to be recognized in Settings->Sound
(I attached a screenshot)

1. ~$ lsb_release -rd
Description:    Ubuntu 20.04.2 LTS
Release:        20.04

2. ~# apt-cache policy linux-image-5.8.0-44-generic
linux-image-5.8.0-44-generic:
  Installed: 5.8.0-44.50~20.04.1
  Candidate: 5.8.0-44.50~20.04.1
  Version table:
 *** 5.8.0-44.50~20.04.1 500
        500 http://at.archive.ubuntu.com/ubuntu focal-updates/main amd64 
Packages
        500 http://security.ubuntu.com/ubuntu focal-security/main amd64 Packages
        100 /var/lib/dpkg/status

3. Expected internal microphone to work
4. Internal microphone not working

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Attachment added: "sound-settings-on-5.8.0-44-generic.png"
   
https://bugs.launchpad.net/bugs/1916988/+attachment/5467403/+files/sound-settings-on-5.8.0-44-generic.png

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https://bugs.launchpad.net/bugs/1916988

Title:
  Internal microphone not being recognized on Lenovo Yoga Slim 7 after
  kernel upgrade

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