Chris Wilson of Intel OTC announced the xf86-video-intel 2.19 X.Org driver on the mailing list. "More stability fixes for UXA and support for another variant of IvyBridge. Given the severity of the stability fixes, I strongly recommend everybody to upgrade to 2.19.0."
The key fixes in this DDX driver update for Intel's in-house graphics processors include prevent waiting on scan-lines referencing foreign CRTC configurations, a pixmap and buffer object leak during fallback glyph composition, removed broken acceleration for rendering glyps directly upon the destination pixmap, and support for the Ivy Bridge GT2 server chipset. There's also a fix for broken damage flushing with CompositRectangles, the X.Org Server crashing with multiple monitors, and composition issues resulting from overly aggressive pixmap reuse.