Make sure the System76 driver >= 2.6.5 Version 2.6.5 - Fix Bonobo (bonp5) headphone detection and speaker mute http://www.knowledge76.com/index.php/System76_Driver_Changelog
** Summary changed: - Alsa does not mute speakers when headphones are plugged + [System76 Bonobo Pro, Realtek ALC892, jack sensing] Alsa does not mute speakers when headphones are plugged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1123595 Title: [System76 Bonobo Pro, Realtek ALC892, jack sensing] Alsa does not mute speakers when headphones are plugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1123595/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs