Phoronix: Northern Islands & Fermi Busted On Open-Source

Even with the likely release of the Linux 3.0 kernel, open-source graphics drivers continue to be a big problem for the Linux desktop. While they have improved a lot in recent years, for many Linux users they can cause horrific headaches. Recently it was mentioned on Phoronix that Intel Sandy Bridge is in bad shape for Ubuntu 11.04 and that it even broke upstream in Linux 2.6.39, but Intel's far from being the only driver experiencing a choppy boat ride...

http://www.phoronix.com/vr.php?view=OTQ4OA