(Just a note: the alsa-oss package is irrelevant to your symptom.)
Is the symptom reproducible after following https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules?
(Just a note: the alsa-oss package is irrelevant to your symptom.)
Is the symptom reproducible after following https:/ /wiki.ubuntu. com/Audio/ InstallingLinux AlsaDriverModul es?