One of the Hybrid Graphics Linux Launchpad team members has posted the detailed instructions to install vga_switcheroo for Linux Switchable graphics. Here is the permanent link:
Thanks to David Airlie and Matthew Garrett's work on switchable graphics, we now have pretty good switchable graphics support for Linux, both for discrete-Nvidia and discrete-ATI configurations.
If you have tried the instructions above and got it to work successfully, or if you are just interested in hybrid graphics features in Linux, please subscribe to the hybrid-graphics-linux Launchpad team here:
Reports, either positive and negative, are gratefully accepted!