Please install the upstream driver either from http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/ or a tracking package like ppa:oibaf as the linked bug report would seem to be one already fixed.
Please install the upstream driver either from http:// cgit.freedeskto p.org/xorg/ driver/ xf86-video- intel/ or a tracking package like ppa:oibaf as the linked bug report would seem to be one already fixed.