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

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# AMD Graphics Card
Good overview (table):
* [wiki.gentoo.org/Radeon](https://wiki.gentoo.org/wiki/Radeon#Feature_support)
* [wiki.gentoo.org/AMDGPU](https://wiki.gentoo.org/wiki/AMDGPU#Feature_support)
## 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
**TODO**: archwiki -> kernel-mode-setting -> early-kms-start
For AMDGPU: in /etc/mkinitcpio.conf include "amdgpu" in MODULES=(...).
Otherwise Xorg might not start properly.
```shell
# "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)
```
### 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.
```shell
# 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)
```