Hello, On a fresh install of Ubuntu Desktop 18.04.1 with amdgpu-pro 18.40 (Radeon™ Software for Linux® 18.40 Highlights | AMD) I can't get an RX 590 to run even though the "Product Family Compatibility" claims support for the RX 590 series. the computer boots to a purple screen, then the GPU revs up to full fan speed, then the GPU fan speed goes back to normal, then the screen turns and stays black.
The same system runs fine with an RX 470
I tested the RX 590 on Windows 10 to confirm that the issue isn't with the GPU and it seems to run without issue on Windows 10.
Any help would be greatly appreciated, thanks!