I'm seeing the same thing. Every once in a while, the sound devices disappear from the sound settings. However, for me the sound usually stops working, and then when I open VLC, it throws sound errors.
This bug seems to be important. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574792 Title: sound devices disappear from sound settings To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1574792/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs