https://bugzilla.kernel.org/show_bug.cgi?id=65091
do you mean quad speaker array use four channels instead of two ** 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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1516361 Title: [N551JK, Realtek ALC668, Speaker, Internal] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1516361/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs