Hi Franz, As of Natty, only automute from headphones to internal speakers is supported, not headphones to line out. However, I know upstream has been changing this lately, so if you download the latest drivers according to https://wiki.ubuntu.com/Audio/InstallingLinuxAlsaDriverModules that might solve your problem.
** Changed in: alsa-driver (Ubuntu) Status: New => Invalid ** Changed in: alsa-driver (Ubuntu) Status: Invalid => Incomplete ** Changed in: alsa-driver (Ubuntu) Importance: Undecided => Wishlist ** Summary changed: - [MS-7593, Realtek ALC889, Green Headphone Out, Front] No automute + [MS-7593, Realtek ALC889, Green Headphone Out, Front] No automute HP -> Line out -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/801403 Title: [MS-7593, Realtek ALC889, Green Headphone Out, Front] No automute HP -> Line out To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/801403/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs