https://bugs.freedesktop.org/show_bug.cgi?id=98461
--- Comment #2 from Denys d.budelkov@gmail.com --- Probably it will be fixed with DAL release from AMD https://www.x.org/wiki/Events/XDC2016/Program/amd_dal.pdf
But unfortunately it's looks like we should wait for kernel 4.11 or even later( http://www.phoronix.com/scan.php?page=news_item&px=AMD-DAL-21-November-2...