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Translations:Xorg/Guide/25/en
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For newer AMD/ATI cards (RadeonHD 2000 and up), emerge sys-kernel/linux-firmware (the package includes radeon and amdgpu; the separate package x11-drivers/radeon-ucode doesn't exist anymore). Once one of these packages has been installed, make the Radeon driver a module in the kernel or, optionally, configure the kernel as detailed in the firmware section of the Radeon article or, for newer AMD graphics cards (GCN1.1+), the firmware section of article AMDGPU: