Possible Duplicate:
How well do laptops with Nvidia Optimus work?
Ubuntu website stipulates that Dell Vostro 3500 is a certified laptop with a condition that only integrated Intel GPU is used. I installed Ubuntu 11.10 and it seems to be using Nvidia but not the integrated GPU. Although Nvidia seems to be working (I am using the latest Nvidia drivers from their website) I would still prefer to revert to Intel GPU due to lower power consumption. Could someone advise me the best way to do so? I am not an experienced Linux user and would appreciate if one could give me detailed instructions.
Thank you in advance, guys!