I'm wondering how viable mining on Linux with AMD cards is now that AMD has a mining optimized driver for Windows. I set up Ubuntu 16.04.3 with AMDGPU (open source) and ROCm (Radeon Open Compute) kernel and this gives me some 17-18 MHz with default bios. The card I have is the ASUS Expedition Radeon RX 570 4GB.
I used a pre-compiled version of ethminer for the testing. I couldn't compile it myself with the OpenCL libraries that i have, it gives some error.
Anyway, does anyone have a setup of RX 5xx series cards running on Linux and what kind of performance do you get? Or is this more or less a lost cause and Windows is the way to go?