I have the same issue with the following USB devices: "Sennheiser SC60 for Lync" (USB headset) "Jabra SPEAK 410 USB" (conference speakerphone) "HD Pro Webcam C920" (webcam with microphone)
I confirm that the workaround is still valid for the mentioned devices. https://alsa-project.org/db/?f=d4596d4503525e4b1c998fd17d386c73adf8a9a9 -- 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