Ubuntu 19: No sound at the Headphone Jack - Audio

Question

I've a problem with the sound at the Headphone jack on my Optiplex 9020m after installing Ubuntu 19.04 on it. Here is what alsa says.

My soundcard is not in the list, and

lspci | grep -i audio

shows a card as:

00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)

In the pavucontrol tab, that's the only option I have. I don't want to play sound over HDMI, i want to play it over the (not displayed) sound card installed in my PC.

I have checked my sound card, it's an onboard sound card. So i cant' replug it.

Answer 1

I found my problem after searching in details.

It's something I've never heard of before and I have not seen. Maybe it will help others too.

I had to enable the sound card in the BIOS. The "Audio" option I found under General settings, and then "audio".

There I had to enable and then apply, and then I could enable the microphone and the headphone jack.