forwarded 421150 https://bugs.freedesktop.org/show_bug.cgi?id=11186 thank you Hi Gunnar, Could you try the latest xserver-xorg-video-intel package (2:2.0.0-5 currently in experimental) and report back whether it fixes your slow rendering under rotation? The problem looks similar to the URL above. Feel free to add comments there if you think it may help. Brice