If you have trouble with sound like this. Sometimes it might disappear or appear by itself. Đ¢hen you can apply bellow recipe.
1. Open conf file:
nano /etc/pulse/daemon.conf
2. Find option realtime-scheduling, change option value from yes to no
and uncomment it:
..
; high-priority = yes
; nice-level = -11
realtime-scheduling = no
; realtime-priority = 5
; exit-idle-time = 20
; scache-idle-time = 20
...
3. Then restart PulseAudio:
pulseaudio -k