Hi there!
I tried several tips from different articles and now it's working
STEPS:
Run āsudo hdajackretaskā
- Click on "Show unconnected pins"
- On "Pin ID x18" - check override and choose "Internal mic"
- On "Pin ID x19" - check override and choose "not connected"
- Click on "Apply now" (ignore the error msg)
- Click on "Install boot override"
- Exit
Now open file "sudo gedit /etc/modprobe.d/alsa-base.conf"
- Add the line āoptions snd-hda-intel model=headset-micā at the end of the file.
- Run āsudo alsa force-reloadā
That's it. Reboot the system
Now on the Settings-> Sound
- On Output, set "Headphone - Built-in audio"
- On Input, set "Internal Microphone - Built-in audio"
To test it, try to blow or poke over the headset mic and see the "Sensibility bar" is detecting the noise.
It worked for me after a lot of hit-and-miss trials.
Thanks for all the patience and help!