I'm currenly mining on rx 570. It works, but not as efficient as on windows.
On claymore 9.2 eth only on 1050/2000 i'm doing 29MHs on win, but only 24 MHz on smos.
Any idea why ?
Yes, look two threads up

I need to release fix. it will be today.
Hey Champ - any idea when this will be fixed? I love using smos but I'm capping @ 24 mh with my RX 570s