If you have a Surface
 

Since about mid-November, Microsoft appears to be deploying a Windows Update just to the Surface Pro 1/2/3 that causes DisplayLink screens to go blank, even though all signs at the software level are that everything is fine.

If you don't have a Surface, it's likely a different issue. On the Surface, the Intel GPU driver version when the problem is present is 10.18.10.3496 dated 3/7/2014.

We've been able to solve the problem in most cases by manually installing a newer Intel driver version. We've posted steps on how to do that here:
http://plugable.com/2014/12/03/how-t...aphics-drivers

If you can, post back here if this solves the issue for you. That'll help us and others understand whether there's one problem here or several.

And for customers with Plugable products, thanks for your patience and please don't hesitate to email us directly at support@plugable.com -- we'll work to solve any remaining issues.

Thank you!
Bernie Thompson
Founder, Plugable Technologies

I followed these instructions and it did not help. I removed the 7.7 driver and installed the 7.4 driver and it now works. I have a Surface Pro 3 and am using the Toshiba dynadock to connect two external monitors.