For anyone who have the same problem.
1) Please add below package sources to your sources.list. deb http://asus.archive.canonical.com/updates precise-yanshui public deb-src http://asus.archive.canonical.com/updates precise-yanshui public
2) apt-get update
3) apt-get install alsa-hda-realtek-patched-dkms
4) reboot
For anyone who have the same problem.
1) Please add below package sources to your sources.list. asus.archive. canonical. com/updates precise-yanshui public asus.archive. canonical. com/updates precise-yanshui public
deb http://
deb-src http://
2) apt-get update
3) apt-get install alsa-hda- realtek- patched- dkms
4) reboot