On a fresh installation of Kubuntu 12.04 amd64 on a Asus N56V jockey-kde says that there are no useful prprietary drivers.
Using the info-center I can see
in PCI an Nvidia Non-VGA unclassified device (0x00)
in Opengl an Intel Ivy Bridge Graphics Controller
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I've found that the 3.2 kernel is missing many kernel modules for the Asus N56V machine and other ivy-bridge machines.
The machine is also overheating.
I'm closing this thread and I'll start a new one after installing 12.10 alpha 2 that uses a 3.5 kernel
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You will require Bumblebee packaged drivers for your video card because Nvidia does not yet officially support these for Linux. See this thread for further instructions: Switchable laptop graphics issues on Ubuntu 12.04?