arch/pkg/de-p1st-gpu-amdgpu/README.md

AMD Graphics Card

Good overview (table):

• wiki.gentoo.org/Radeon
• wiki.gentoo.org/AMDGPU

AMDGPU

From gentoo wiki one should use AMDGPU e.g. for:

AMD Zen 2 "4000" series 7nm laptop APUs

AMDGPU (mandatory packages)

• archwiki -> AMDGPU -> Installation

• archwiki -> Xorg -> AMD

• archwiki -> Lenovo-IdeaPad-S540-13ARE (Ryzen 7 4800U CPU)

• archwiki -> Hardware_video_acceleration -> ATI/AMD

• HW-video-accel verification:

  • run vainfo and vdpauinfo as non-root

• amdgpu module

  • https://wiki.archlinux.org/title/AMDGPU#Loading
    • The amdgpu kernel module is supposed to load automatically on system boot.
    • It is possible it loads, but late, after the X server requires it. In this case:
      • Include "amdgpu" in MODULES=(...) of /etc/mkinitcpio.conf
  • https://wiki.archlinux.org/title/AMDGPU#Specify_the_correct_module_order
    • amdgpu before radeon

# "DRI driver for 3D acceleration"
depends=(mesa)
# "DDX driver for 2D acceleration"       
depends+=(xf86-video-amdgpu)
# "Vulkan support"
depends+=(vulkan-radeon)
# "HW-vide-acceleration: VA-API"
depends+=(libva-mesa-driver)
# "HW-vide-acceleration: VDPAU"
depends+=(mesa-vdpau)

Verification:

lspci -k | grep -EA3 'VGA|3D|Display'

Example output:

	Kernel driver in use: amdgpu
	Kernel modules: amdgpu

AMDGPU PRO (optional packages)

• archwiki -> AMDGPU#AMDGPU_PRO
• archwiki -> AMDGPU_PRO

The amdgpu-pro-installer contains proprietary components for AMDGPU (it works on top of AMDGPU).

Quote about the opengl part (from archwiki -> AMDGPU):

From Radeon Software 18.50 vs Mesa 19 benchmarks article: When it comes to OpenGL games, the RadeonSI Gallium3D driver simply dominates the proprietary AMD OpenGL driver.

# proprietary OpenGL implementation
depends+=(amdgpu-pro-libgl)
# proprietary OpenCL implementation
depends+=(opencl-amd)
# proprietary Vulkan implementation
depends+=(vulkan-amdgpu-pro)
# Advanced Media Framework implementation
depends+=(amf-amdgpu-pro)