Comment 30 for bug 999910

uh, I mean even that one commit from 3.4 isn't enough for my case, so there must be something else to backport, since at least 3.4 final is stable here. It's just quite hard to bisect through the list of commits, when reproducing the hang can take several hours, and the number of commits to i915 is over 100 in 3.4-rc1 compared to 3.3