can you post the pulseaudio log and th output of alsa-info.sh for model=ref ?
https://wiki.ubuntu.com/PulseAudio/Log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1020331 Title: Subwoofer not functioning HP spectre 14 beats audio To manage notifications about this bug go to: https://bugs.launchpad.net/linuxmint/+bug/1020331/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
