Comment 251 for bug 116326

Can confirm in latest kernel had to compile drivers from realtek website andadd also digital input sources to ALSA in order for all sound to work- this picks up headphone jack and speakers. Mic as yet untested, but think it works from headphone source and onboard..
I followed these instructions and used 5.07 drivers from realtek site.
http://ubuntuforums.org/showthread.php?t=878608

Hope this helps