There is sound in the browser (ex. YouTube), but there is no sound in all applications (ex. VLC, jabber, etc). Where to start solving the issue?
Code:
Distributor ID: Kali
Description:    Kali GNU/Linux Rolling
Release:        2019.4
Codename:       kali-rolling
Code:
Qt: 5.12.5
KDE Frameworks: 5.62.0
kf5-config: 1.0