Why does sound disappear on Ubuntu 19.10?

Question

linux

Ubuntu 19.10. There is sound in the headphones from the line output of the motherboard. It is worth pulling out and sticking the headphones back - there is no more sound. In "parameters \ sound" everything is fine. Only reboot helps.

Answer 1

It is not clear what side the System Administration tag is here. But such a cant, in fact, I also have on a laptop with W10