Intel Still Polishing Their 3.0 X.Org Graphics Driver
Chris Wilson at Intel has been hoping for a while to release xf86-video-intel 3.0 soon but another bug was discovered that warrants an extra test release. Bug-fixes in this driver include only discarding damage when overwriting the dirty CPU buffer object, reseting the operation state when switching glyph caches, fully reinitializing pixmaps when allocated from the freed cache, not exposing the Textured Video adapter in UXA when it is disabled by a hung GPU or the user, and restoring the pipe stall when changing the CC state to Gen6.
The changes are mentioned within the xf86-video-intel 2.99.910 Git tag. The big change with the xf86-video-intel 3.0 driver overall is enabling the SNA acceleration architecture by default over UXA for delivering faster 2D performance.