Phoronix posted a news story that the first bits of Linux graphics code to support Sandy Bridge is available in the Git master repository for the Direct Rendering Manager

With the Clarkdale and Arrandale parts out the door and the support becoming stabilized, Intel's open-source developers have begun publicly pushing out new code for the next Intel graphics processors to be found in their CPUs to be introduced at the end of this year. The first bits of Linux graphics code to support "Sandy Bridge" is available in the Git master repository for the Direct Rendering Manager and in the xf86-video-intel DDX X.Org driver.

Intel Sandy Bridge GPU Support Begins On Linux