Audio jack disabled and defaulted

[burbankmike]

So I have the opposite issue. When I plug into the DisplayLink the audio continues to stream from the laptop. In fact the audio jack from the DisplayLink doesn't even recognize when I plug in a headphone. I can plug in a headphone directly into the laptop and that would work. I go to Sound and only see the laptop speaker as an option for playback device.

How can I get the audio jack from the DisplayLink to work?

Using a Targus USB 3.0 DV Docking Station