Bug confirmed for Trust 5.1 headphones. Device is listed as "USB Sound Device" (generic name).
The proposed workaround fixed the issue, please find attached alsa info. http://www.alsa- project.org/db/?f=1990ae45d29a75caa927351101c3295dc12ea616 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002952 Title: [meta-bug] Invalid extra "Digital output S/PDIF" device for USB cards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-lib/+bug/1002952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs