Optimus Support for Linux (installed in ubuntu 11.04)

bumblebee

Bumblebee has now been packaged into a PPA @ Launchpad:

https://launchpad.net/~mj-casalogic/+archive/bumblebee/

install

sudo apt-add-repository ppa:mj-casalogic/bumblebee
sudo apt-get update
sudo apt-get install bumblebee

run

sudo /etc/init.d/bumblebee enable
optirun glxspheres

vs non-optimus

glxspheres