Running Ubuntu 16.04.  Just as the title says, audio suddenly stopped working and now Pulseaudio doesn't think my line out is plugged in even though it is, and the kernel recognizes this as I can see by amixer contents. At a loss for what to do, have googled extensively and restarted the computer several times.
Amixer shows line out is plugged in but Pulse Audio thinks it's unplugged?
linux;ubuntu;pulseaudio