$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Radeon RX 580 Driver on Gnu/Linux Distros

GNU/Linux Installing Radeon RX 580 Driver

Hi! The linked Tutorial shows you Step-by-Step How to Install AMD Radeon RX 580 Graphics and GPU Driver in GNU/Linux 64-bit Desktops.

And there are 2 Radeon RX 580 Linux Driver available Alternatives of AMDGPU: Proprietary and Open-Source.

Moreover, the AMDGPU Pro Software includes Support for Accelerated Graphics, MESA Multimedia, Pro OpenGL, Pro Vulkan and Pro OpenCL.

Especially relevant, the Setup is not Not Granted because the Latest Driver supporting a Device varies over Time, so before you should definitely check:

How to Install Radeon RX 580 Driver on Linux - Featured

GNU/Linux Radeon RX 580 Graphics and GPU Driver Installation Guide