The amdgpu-pro-installer contains proprietary components for AMDGPU (a.k.a. Radeon Software for Linux).
For proprietary OpenGL implementation, install AMDGPU#AMDGPU PRO for more details.AUR. See
For proprietary OpenCL implementation, install GPGPU#AMD/ATI for more details.AUR or AUR. See
For proprietary Vulkan implementation, install Vulkan for more details.AUR. See
Intel + AMD hybrid graphics
Currently (version 19.30) there is a problem when using amdgpu pro opengl driver alongside with intel gpu. It is usual configuration for laptops, but also applies to desktop in case you set intel gpu as primary. When you boot your machine, you get a black screen, but mouse cursor is moving normally. If you have suggestion, please edit this wiki page. Reverse prime probably could be a solution, but PRIME#Reverse PRIME lacks this information.
If you are affected, please upvote this bug report.
If you are in trouble, for example, you cannot login to your system due to black screen, you can revert all back by uninstalling all packages related to amdgpu pro. Switch to the tty2 (ctrl+alt+f2), login to the system and run
pacman -R $(pacman -Qg Radeon_Software_for_Linux | cut -f2 -d" ") and reboot.