https://bugs.freedesktop.org/show_bug.cgi?id=72685
--- Comment #18 from smoki smoki00790@gmail.com ---
From my experience all of those "HYPERZ issues" are related to the shadows :).
In both Sanctuary and Heavean demos if i only turn off shadows in config file there is no artifacts anymore:
<item name="render_force_no_shadows" type="int">1</item>
So if someone succesfully fix that currently in various ways broken shadows setup in r600/radeonsi code, he will fix hyperz artifacts too :).