Version 2.3 Beta DOES NOT work with Yosemite
 

When I upgrade the driver to 2.3b, the TV I have plugged into my dock stops working. It works again once I revert to the previous driver. It would Also be great to have an option/toggle to turn on/off your connected screens. My mac detects my TV, whether or not it is turned on which is quite lame.

Can you please use this tool http://www.displaylink.com/support/ticket.php?id=269
And then send us the information using http://www.displaylink.com/support/ask_question.php

I agree it would be great to have the option to disable a connected screen in the standard preference pane.
There are third party utilities that do that, for example SwitchResX.

Cheers
Carlo

Maybe there is a connection between these things:
Apple isn't able to fix the problems with his own Apple TV device for extending and mirroring the screens with airplay:

https://discussions.apple.com/thread...rt=45&tstart=0

Maybe when they get to fix these problems the Displaylink problems are fixed, too. Hope so.