23.03.2018 · Manjaro merged all of the open source drivers to video-linux, a generic gpu driver script for mhwd, so just use video-linux as the open source drivers are best for AMD. video-linux contains (I believe, from the thread):
In Manjaro this will automatically be available for hybrid graphics systems using intel/modesetting for the integrated card and free drivers (AMDGPU or Nouveau) for the dGPU. You may choose to run a program with a specific GPU, prepending the application's command with DRI_PRIME=x, where x is the card priority number.
13.11.2019 · Download the script from here: https://github.com/pavolelsig/passthrough_helper_manjaro/blob/master/manjaro_help.shEditing virsh: https://wiki.archlinux.org...
13.01.2021 · OS: Manjaro Linux x86_64 Kernel: 5.10.2-2-MANJARO DE: Xfce 4.14 CPU: AMD FX-4300 (4) @ 3.800GHz GPU: AMD ATI Radeon HD 7750/8740 / R7 250E This is my GPU: Sapphire Ultimate R7 250 Specs | TechPowerUp GPU Database. If anyone can help it …