Surface Pro 3 USB to HDMI blank screen

[cmergel]

Anybody from support looking at these?

This latest update causes issues reported by multiple people.

Any recommendations?
Known issue?

I am running the Lenovo USB 3.0 Dock.
I was previously on DisplayLink v7.7 M0 and it was working.
When I installed v7.7 M2 the secondary monitor which is connecting using DVI cable goes black. The system thinks is operational but it is a black hole. Nothing accessing.

I went through the uninstalling and reinstalling of M0, but it acted the same. Secondary monitor black screen.
I had to run restore point to get back to before the update.

There is something wrong with this version.
Please look at this.