Since Stefano git bisected down to a specific kernel tree commit (thanks bunches Stefano!) it seems safe to say it's a kernel bug rather than xorg at this point. But I've gone ahead and upstreamed the bug to the -intel driver (the bisection search points to a git commit from one of the Intel driver developers).
Even though this is definitely a kernel bug rather than X, I'll leave the -intel task open for a little bit, in case there are more dupe bug reports about this issue filed to X.
I've forwarded this bug upstream to http:// bugs.freedeskto p.org/show_ bug.cgi? id=34584 - please subscribe yourself to this bug, in case they need further information or wish you to test something.
Since Stefano git bisected down to a specific kernel tree commit (thanks bunches Stefano!) it seems safe to say it's a kernel bug rather than xorg at this point. But I've gone ahead and upstreamed the bug to the -intel driver (the bisection search points to a git commit from one of the Intel driver developers).
Even though this is definitely a kernel bug rather than X, I'll leave the -intel task open for a little bit, in case there are more dupe bug reports about this issue filed to X.