Is the Nvidia GeForce GT630M/GT640M/GT650M graphics card supported in Ubuntu 11.10 or Ubuntu 12.04?
Unless the manufacturers provide a BIOS option for using these discrete cards only, it will likely not be supported because of the Optimus technology. See also How well will Nvidia Optimus cards be supported in 12.04?
I was just made aware that the newer NVIDIA binary driver should support these chips:
Be aware that it is now supported by 290.35 :