[potkor]

There's supposed to be native Optimus support in the latest drivers. Ubuntu is aiming to support it for 13.10 (and backport to LTS), see https://wiki.ubuntu.com/X/HybridGraphics

Let's hope it works out. There are still some showstopper bugs like suspend not working and touchpad locking up.

Bumblebee was always a stopgap and a kludge - and a lot of credit is due for the enterprising bumblebee hackers.

[virtualwhys]

I've yet to hear whether or not the new Optimus drivers reduce heat generation for multi-monitor setups (which are fixed to max power mode in Linux when more than 1 monitor is in use, resulting in more fan noise).

Would hope so, but never get much a reply from Nvidia's Linux board: https://devtalk.nvidia.com/default/board/98/

As it stands was forced to modify the VBIOS in order to undervolt the card and finally get the GPU fan in laptop to shut up. Silence is golden.