Nouveau: Accelerated Open Source driver for nVidia cards
The nouveau project aims to build high-quality, free/libre software drivers for nVidia cards. “Nouveau” [nuvo] is the French word for “new”. Nouveau is composed of a Linux kernel KMS driver (nouveau), Gallium3D drivers in Mesa, and the Xorg DDX (xf86-video-nouveau).
2D/3D acceleration supported on all cards; see FeatureMatrix for details
Performance level selection (also known as "reclocking") is not supported yet. Expect low 3D performance on laptops using a Tesla GPU and all Fermi/Kepler cards. (see CodeNames)
Oct, 2014: Roy Spliet gave a presentation at XDC2014 about his Google Summer of Code: Project REclock.
Jun, 2014: Xf86-video-nouveau lands support for DRI3, glamor acceleration and Maxwell (GM107)
Jun, 2014: EVoC approved for work on reclocking support on NVA3/A5/A8
Jun, 2014: Mesa 10.2 released, includes full support of GK110/GK208
May, 2014: Maxwell (GM107) support checked into mesa, to be included in 10.3 release
Apr, 2014: Maxwell (GM107) support checked into kernel (modesetting only), to be included in 3.15