What should I do wrt nvidia optimus laptop

[RussianNeuroMancer]

The X server simply doesn't support this setup.

What about support at least with X server restart? (Like in Catalyst.)

[t.s.]

Getting nVidia only laptops (which I think is what you mean by "discrete nvidia" is hard nowadays. Hybrid nVidia+nVidia setups don't exist anymore in today's laptops, and nVidia only is also becoming very rare except for laptops that have Linux preinstalled.

Yep, I mean nVidia only. Or, fusion APU (A series, without hybrid AMD+AMD). But the safest bet is to get all intel for open source + performance.

[t.s.]

id rather stich with it and disable 1 graphic device or buy ivy bridge which will perform like a gt 435

Agree.. But If you want to buy core i3 IVB, it's not yet available. My take is about a half year from now. Too long a wait. Except price is not important for you, then you can get IVB i7, now (but much tandem it with nVidia, unfortunately).