https://bugs.freedesktop.org/show_bug.cgi?id=108317
--- Comment #20 from Dimitar Atanasov phusho@yahoo.com --- I have same problem with kernel 5.0 rc2 and Mesa 19git 7bef192 (trough Padoka PPA), picture is OK if you use R600_DEBUG=nohyperz. For me it is around 10 FPS less with this option set in some games. VegaM.