Erase all of /etc/asound.conf and ~/.asoundrc*, then logout and login. They're clashing with PulseAudio due to unfortunately poor naming of the usb audio device by the manufacturer.
** Changed in: pulseaudio (Ubuntu) Status: New => Invalid -- [USB-Audio - C-Media USB Audio ] pactl stat failed to find default card https://bugs.launchpad.net/bugs/662156 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs