Headphone input missing 20.04

Question

The problem:

When I connect my headphone the mic doesn't get recognized. No input device is listed at all.

Context:

• Fresh install of ubuntu 20.04 on my desktop
• Codec: Realtek ALC887-VD
• Headset works on my dell laptop
• USB headset works just fine on my desktop
• Front panel detects as headphone (no input device is listed)
• Rear panel detecs as line-out

Tried:

• Using HDAjackretask to override front side green jack as Headphone (did nothing)
• Using HDAjackretask to override rear side green jack as Headphone (did nothing)
• Finding best option on https://www.kernel.org/doc/html/latest/sound/hd-audio/models.html (not found)
• Editing alsa-base.conf using:
  • options snd-hda-intel model=dell-headset-multi
  • options snd-hda-intel model=asrock-mobo
  • options snd-hda-intel model=headset-mic
  • options snd-hda-intel model=headset-mic

Answer 1

First install pavucontrol:

sudo apt install pavucontrol

Start it:

pavucontrol

Choose in Configuration the appropriate device and adjust the volume.

alternatively, you can also use

pacmd set-card-profile alsa_card.pci-0000_00_1f.3 output:analog-stereo+input:analog-stereo

You can find the exact name of your card (here alsa_card.pci-0000_00_1f.3) by running:

pacmd list-cards