Comment 4 for bug 1386620

I've verified xorg-server rotation works correctly. On utopic I had issues with rotation, when using xrandr --output HDMI1 --rotate left in normal mode. Bisecting it shows it was caused by introducing dri3 support, and cherry picking some upstream patches fixed it. The trusty patches to xxv-intel don't introduce dri3 support so it's unaffected by the hang I've discovered.

But on trusty with those patches rotation works for me as it should. :)