I'm afraid I don't have any experience with Optimus, but I did also hear that it did not work well (or at all?) on Linux. Does installing an Nvidia mobile driver force the GPU on 100% of the time?

twod
I'm afraid I don't have any experience with Optimus, but I did also hear that it did not work well (or at all?) on Linux. Does installing an Nvidia mobile driver force the GPU on 100% of the time?

Nope you can't force it at all. It actually relies on some software solution and the intel card for outputting to the screen. Super stupid solution.

Had same problem. this fixed it.

http://www.garagegames.com/community/forums/viewthread/125346 [garagegames.com]