Addendum: Maybe I should have tried this beforehand, sound works again with kernel 4.12.0-0.bpo.2-amd64, so it seems that whatever change caused this bug in 4.9 has been fixed meanwhile.
Regards Michael
Addendum: Maybe I should have tried this beforehand, sound works again with kernel 4.12.0-0.bpo.2-amd64, so it seems that whatever change caused this bug in 4.9 has been fixed meanwhile.
Regards Michael