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, ** Bug watch added: Linux Kernel Bug Tracker #65091 http://bugzilla.kernel.org/show_bug.cgi?id=65091 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to alsa-lib in Ubuntu. https://bugs.launchpad.net/bugs/1286021 Title: 2.1 surround support (userspace) Status in “alsa-lib” package in Ubuntu: Fix Committed Status in “pulseaudio” package in Ubuntu: In Progress Bug description: 2.1 surround should work as seamlessly as other surround options, such as 4.0, 5.1 and 7.1 work today. Alsa-lib and pulseaudio patches for 14.04 can be tested here: https://launchpad.net/~diwic/+archive/surround21 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1286021/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
