Based on upstream feedback, I'm closing this as invalid. Seems there was a rogue mixer setting causing the trouble.
** Changed in: linux (Ubuntu) Status: Triaged => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/976998 Title: An audio device is active 100.0% of the time: hwC0D0 Analog Devices AD1984 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/976998/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs