I can confirm #51: no sound from internal speaker and headphone jack on 4.15.0-108-generic.
Upgraded to 4.15.0-108-generic from 4.15.0-96-generic on bionic the sound is broken again.
Booting into the old 4.15.0-96-generic, sound is working without any other changes.
I can confirm #51: no sound from internal speaker and headphone jack on 4.15.0-108-generic.
Upgraded to 4.15.0-108-generic from 4.15.0-96-generic on bionic the sound is broken again.
Booting into the old 4.15.0-96-generic, sound is working without any other changes.