This is what AMDGPU-PRO attempts to do. It's still incompatible and buggy. When a driver is closed source, the only people who can fix bugs, keep the driver​ u

This is what AMDGPU-PRO attempts to do. It's still incompatible and buggy. When a driver is closed source, the only people who can fix bugs, keep the driver​ updated, patch security holes, implement new APIs like Wayland, Vulkan, OpenGL extensions, etc. are the employees of the company who owns the driver. Was it important for AMD to make old ATI cards work with newer versions of Xorg? With Wayland? With Windows? AMD certainly didn't think so. Since the existing driver was proprietary, those that did care had to implement another driver from scratch! Open source drivers exist for practically every video card, and have for decades. The problem is that they all suck except those that were supported by the manufacturer in the first place.