You might also try this patch: http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes&id=b7f5b7dec3d539a84734f2bcb7e53fbb1532a40b
You might also try this patch: cgit.freedeskto p.org/~ airlied/ linux/commit/ ?h=drm- fixes&id= b7f5b7dec3d539a 84734f2bcb7e53f bb1532a40b
http://