Dear users,

I have a PC with a ASRock Fatal1ty B450 Gaming-ITX/ac motherboard.

I've had problems with the video driver since the ubuntu installation, but I've solved it, as written is this topic.

Now I have audio problems, ubuntu no longer sees two audio outputs, but it sees only S/PDIF audio output, as you can see in this screenshot:
Schermata da 2018-11-30 12-54-53.png

The two audio outputs that no longer appear are HDMI and HD audio. I've connected the PC with HDMI cable to monitor.

It must be said that up to 2-3 days ago everything worked regularly.

How can I fix this issue?

Thanks