A 2.6.34 kernel should do the trick.
It might be easier to try the Ubuntu 10.10 "Maverick Meerkat" alpha 2 live CD.
Instructions on how to use the GPU switching code can be found at the links in the first paragraph of the article at http://www.phoronix.com/scan.php?page=news_item&px=ODAxOA
A 2.6.34 kernel should do the trick.
It might be easier to try the Ubuntu 10.10 "Maverick Meerkat" alpha 2 live CD.
Instructions on how to use the GPU switching code can be found at the links in the first paragraph of the article at http:// www.phoronix. com/scan. php?page= news_item& px=ODAxOA