Comment 15 for bug 1175533

Kernel commit 1c98b4871cca4b7ce07e19f92f934d47cf7210b0
Author: Rodrigo Vivi <email address hidden>
Date: Mon May 13 18:12:25 2013 -0300

    drm/i915: Adding more reserved PCI IDs for Haswell.

xf86-video-intel 2.21.7

Looks like mesa/libdrm lack updates.