

This experimental support still requires you to kill and restart the X server in order to get there, so it’s all rather crude. I’m not entirely sure what the situation is like on Linux, but from these recent Phoronix stories it would seem that there’s only experimental support for this. Then again, Mac OS X still doesn’t support SLI either, so little surprise there. Even though the hardware is fully capable of switching between the two GPUs “live”, Apple has never implemented the support for it in software, requiring you to log out if you want to use the discrete GPU and again when switching back. On Mac OS X, the situation is a million times worse. Upon switching, the screen would go blank for a few moments, et voilà . On Windows Vista and Windows 7, you needed to manually switch between the two via the power settings or the graphics tray icon. In Windows, that is.ĭespite many laptops already shipping with two graphics processors – a low-power integrated one and a discrete powerful one – software support for switching between the two has been a bit problematic. Today, NVIDIA introduced a technology called Optimus, which makes the switching process automatic and transparent. Notebooks with dual GPUs have been shipping for a while now, but switching between the fancy discrete GPU and the low-power integrated one hasn’t exactly been painless.
