Radeon RX 550 Stumbles On Open-Source, Working Fine With AMDGPU-PRO

This week I decided to pick up the Gigabyte Radeon RX 550 2GB graphics card for Linux testing at Phoronix, a $90 USD graphics card that was recently launched as part of the "Polaris Evolved" line-up. It's not working on the upstream open-source code-base at the moment, but at least does function with the latest AMDGPU-PRO 17.10 driver for the RX 500 series...