I was looking at possibilities for using my old surface as additional screen for Sonar and Console 1 and I found this amazing software Spacedesk - http://spacedesk.ph/ (and there are couple other alternatives). Basically, this installs a virtual display driver that lets you extend your computer screen to more devices, like a tablet or a laptop, etc. It is seriously cool but the latency of the thing was quite bad.
 
Has anyone setup something like this or tried similar solutions with Sonar?
 
Erik.

You're always going to incur latency when the second display is connected via Ethernet, or worse, USB. There's a reason video adapters have a special connection to the other innards of your computer - it requires transferring a LOT of data very quickly, much more than any other peripheral.
 
HDMI provides a much faster connection, but not all laptops have an HDMI port and some simply redirect their video to the external display or mirror what's on the primary display, so you can't use the two independently. If your laptop has an HDMI port and it allows both displays to be used simultaneously and independently, then you won't need any add-on software; Windows will handle it for you. And it'll be fast enough that you may not even notice the latency.

I have tested a lot of virtual displays over cabled network. Even mouse and keyboard remoting.
There were numerous problems - from latency to dissapeard mouseclicks. Even some shortcuts dissapeared in an inexplicable way.
So I don't use such software anymore.
It's much easier to buy a grafic card with 2 connections and a second screen.

Your lap top probably has another port (hopefully an HDMI) and Windows can also do stretch, Clone, exc.