[alsa-devel] ALSA does not detect the built-in microphone on HP EliteBook 850 G6

[lazarenkovegor]

Hello!

ALSA does not detect the built-in microphone on HP EliteBook  850 G6 with
Ubuntu 19.10 Kenrel 5.3.0-27-generic

I tried to specify the following "options snd-hda-intel model" in
/etc/modprobe.d/alsa-base.conf :

   - *laptop-amic*,* laptop-dmic* - a recording device has appeared but it
   does not work. LED of MicMute on hardware button is always ON
   - *auto*, *3stack*,*  hp-gpio4*,* hp-gpio-led*, *hp-dock-pins*,
   *hp-dock-gpio-mic*, *hp-9480m*, *alc280-hp-headset*,
*alc221-hp-mic*, *hp-rp5800
   *- there is no audio recorder in the system. LED of MicMute on hardware
   button is always ON
   - *hp-gpio2-hotkey *- there is no audio recorder in the system. LED of
   MicMute on hardware button is always OFF


Can you help set up ALSA to work with the specified laptop?
If necessary, I can compile and install the necessary patches and send work
logs.
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