"There's already quite a bit of code that has been merged into
the Linus 2.6 Git tree for the Linux 2.6.34 kernel tree, but the
first pull request for the DRM (Direct Rendering Manager) code has
went in this morning.
"As was mentioned last week, the "vga_switcheroo" that allows
for dual GPU switching / hybrid graphics support on some notebook
computers is now being pushed into the mainline kernel. This
support isn't as polished as what can be found on Windows Vista/7
with real-time switching, but for now on Linux the X.Org Server
needs to be restarted when switching between the graphics
processors. The NVIDIA switching support is also still immature
compared to the ATI and Intel support levels."