If you want to try the lates alsa driver as suggested in comment #7, get the package at the top of the list at https://launchpad.net/~ubuntu-audio-dev/+archive/alsa-daily/+packages?field.name_filter=&field.status_filter=published&field.series_filter=precise
If you want to try the lates alsa driver as suggested in comment #7, get the package at the top of the list at https:/ /launchpad. net/~ubuntu- audio-dev/ +archive/ alsa-daily/ +packages? field.name_ filter= &field. status_ filter= published& field.series_ filter= precise