https://bugs.freedesktop.org/show_bug.cgi?id=72685
--- Comment #17 from smoki smoki00790@gmail.com --- I can confirm this with Radeon 8400, hyperz leaves those artifatcs with hyperz enabled... but actually i dont think hyperz is at most quilty here, because first of all rendering on that scene must be proper and actually it is not even with hyperz disabled as i mention in bug 77785 :). I somehow tend to think hyperz just likes proper rendering, otherwise when it is not there will be bugs like this ;).