Are nVidia closed source drivers still needed for 2 years old chipset?

[Amadeus W.M.]

> Does the open source driver have (the equivalent of) TwinView these
> days?  I need TwinView to make my laptop drive an external
> projector/beamer.
> 

I don't think so. But I couldn't get TwinView to work with the nvidia 
driver either. I do get to display, on my hdtv, but I can't clone the 
laptop monitor. I get a desktop stretching over both displays, half on 
the laptop, half on the tv.