Comment 12 for bug 618271

Sorry, there was an error in the package. Can you download it again from http://people.canonical.com/~diwic/temp/alsa-intel-hda-update-dkms_1.0.23_all.deb , install and reboot?
To check that the package is actually in effect, run "modinfo snd-hda-codec-realtek", and check the filename path: it should include "dkms".