Hmm and how about having each monitor separate, i.e. buying a usb to hdmi or whatever you like adapter?

I am running Protools (it's a harddisk-recording industrial std.). As far as I know is it only possible to have one movie window open at the time. The person that is lib-syncing has to have a pretty good view on the 3'rd monitor, while I can do with a crappy view of the same scenes on the 2'nd monitor at the same time. (If it was possible to have two movie views at the same time, this could be a fine solution I guess)..

 

Haha! I like your thinking. The 3'rd monitor has to be the one with the normal picture. It will be used to audio-dub/lib-sync, so it has to be pretty clear..

If quality of the 3rd monitor is most important, make the 3rd monitor the one connected to the computer and the 2nd monitor connected to the webcam.

 

If quality of the 3rd monitor is most important, make the 3rd monitor the one connected to the computer and the 2nd monitor connected to the webcam.

Thanks! But the 2'nd monitor has to work properly as 2'nd monitor in all other cases, when not using the 3'rd. Thanks for all the inputs guys! I feel a little "wiser" now regarding what direction to look in

 

I bet there has to exist a program that lets you mirror a certain window onto a different monitor.
For example this http://www.displaylink.com/support/tools.php

 

A hypothetical question: If I just interchanged the vertical and horizontal lines (crossed in the cable). What I would expect, would be a rotated but cropped image? But if it then where possible to change the aspect ratio in the driver(?). It is said that the monitor nr. 2 does not have to have a nice aspect ratio, it is just sort of a quick view for the rotated monitor nr. 3

Go ahead and try it if you're hell bent on it, but don't expect reasonable results. Maybe a little research into video formats conducted on your own time would convince you of this.

 

I bet there has to exist a program that lets you mirror a certain window onto a different monitor.
For example this http://www.displaylink.com/support/tools.php

Ah, good thinking Kubeek If I can find some software for Mac that can do that, I might just have a window on the 1'st monitor that is mirrored to the 3'rd, and turn the 2'nd monitor off, when working like that.