Comment 3 for bug 641073

@Guardian452, there seems to be a quirk in the driver, but the quirk does not look right to me. I've made a test package for you with a possible fix. Could you try download and install http://people.canonical.com/~diwic/temp/alsa-intel-hda-diwic-dc7600-dkms_1.0.23.diwic_all.deb - reboot afterwards and test, and tell if it helped or not? Thanks!