Got the same headset. On Ubuntu 14.04 doesn't seem to work at all. The device gets listed in System settings > Sound > Input/Output lists, but picking it for playback or recording doesn't change anything - the built-in mic and speakers are used instead.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1392618 Title: [USB-Audio - Plantronics .Audio 628 USB, playback] No automute To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1392618/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs