https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/871808
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1040873
those Asus laptop only use alc663 codec , as one of the volume control is used by headphone and it won't support 5.1
https://bugzilla.kernel.org/show_bug.cgi?id=65091
http://www.asus.com/Notebooks_Ultrabooks/N550JV/
New N Series laptops are the first with a quad-speaker array. And for deep bass, you get the bundled external SonicMaster subwoofer,
https:/ /bugs.launchpad .net/ubuntu/ +source/ alsa-driver/ +bug/871808
https:/ /bugs.launchpad .net/ubuntu/ +source/ alsa-driver/ +bug/1040873
those Asus laptop only use alc663 codec , as one of the volume control is used by headphone and it won't support 5.1
https:/ /bugzilla. kernel. org/show_ bug.cgi? id=65091
http:// www.asus. com/Notebooks_ Ultrabooks/ N550JV/
New N Series laptops are the first with a quad-speaker array.
And for deep bass, you get the bundled external SonicMaster subwoofer,