https://launchpad.net/~diwic/+archive/hda
use hda-jack-retask to change node 0x16 to [Jack] Line Out at any location different from the headphone and headphone , Misc = NO_PRESENCE (no Jack detection so that driver won't mute speaker when the external subwoofer is plugged) post the output of alsa-info.sh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1040873 Title: [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound at all: Subwoofer not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1040873/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs