>
>
> You need bumblebee. Otherwise it's not possible to use the Nvidia
> Optimus chip.


I think that it is possible, or supposed to be possible!
The gentoo wiki says that Nvidia drivers are now supporting the optimus, so
it is called "native optimus support"


> > I just waned to use optimus without that, but it seem the it is not easy!
>
> It's not possible, because the Nvidia Optimus chip isn't a full featured
> graphics card, and doesn't write directly to the screen. Joost already
> explained it pretty well.
>
> Exactly, that is why the Nvidia driver is using the xrandr for offloading
the tasks.