I remove package wine-stable and your dependencies. After reboot the
internal speakers works again
dpkg.log:
2019-06-12 16:35:10 startup packages remove
2019-06-12 16:35:11 remove wine-stable:all 3.0-1ubuntu1
2019-06-12 16:35:29 startup packages remove
2019-06-12 16:35:29 remove fonts-wine:all 3.
Public bug reported:
No sounds at internal speakers but headphones works
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: pulseaudio 1:11.1-1ubuntu7.2
ProcVersionSignature: Ubuntu 4.15.0-1039.44-oem 4.15.18
Uname: Linux 4.15.0-1039-oem x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: am