How to Install AMD Open Source Drivers on Gentoo – Step by step

GNU/Linux Gentoo Installing AMD Open Source Drivers Guide

How to install the official AMDGPU open-source graphics drivers on Gentoo Linux – step-by-step using Portage.

These drivers use the AMDGPU kernel module and the Mesa 3D stack to support modern Radeon cards on Gentoo.

Finally, this Setup is valid for all the Gentoo Based Distros:

• Funtoo
• Sabayon

1. 1. Sync the Portage Tree

   Update your ebuild repository:

   sudo emerge --sync

2. 2. Set Appropriate USE Flags

   Edit /etc/portage/make.conf (or /etc/portage/package.use) and ensure you have:

   # Enable AMDGPU support, DRI, and Vulkan
   VIDEO_CARDS="amdgpu radeonsi"
   USE="dri vulkan opencl"
       

3. 3. Install or Rebuild the Mesa Stack

   Compile and install Mesa with AMDGPU support:

   sudo emerge --ask --verbose media-libs/mesa

4. 4. Install Vulkan and OpenCL Runtimes

   If you need Vulkan and OpenCL user-space libraries:

   sudo emerge --ask --verbose media-libs/vulkan-loader
   sudo emerge --ask --verbose media-libs/vulkan-tools
   sudo emerge --ask --verbose dev-libs/opencl-headers
       

5. 5. Verify Installation

   Check the kernel module is loaded:

   lsmod | grep amdgpu

   Test OpenGL:

   glxinfo | grep "OpenGL renderer"

   Test Vulkan:

   vulkaninfo | grep "apiVersion"

You’re done! Your Gentoo system now runs on the latest AMDGPU open-source drivers and Mesa stack.