This solution did not work for me for Ubuntu 18.04. But as I executed
pactl load-module module-detect
the missing built-in Audio Analog Stereo suddenly appeared in the sound settings menu. As I chose it, I was able to hear the sound.
If you want this setting permanent, add the line
load-module module-detect to the default modules in
I managed to solve this, although not a optimal solution, it’ll work.
I installed PulseAudio Volume Control. Then went to “Configuration” and under the correct sound card, I chose the correct output (Analog 5.1).
Then it shows up in sound settings again. Although, if I change the device in Sound Settings, I sometimes have to open PulseAudio Volume Control the analog sound show up again.
Thanks to this question and answer.