AMDGPU

amdgpu is a family of open source graphics drivers for AMD/ATI Radeon graphics cards.

Hardware detection
To choose the right driver, first detect the graphics card. You can use lspci for this task:

Feature support

 * 1) support is optional in the kernel

Kernel
You need to set the following kernel options:

The options from the Sound card support menu need only to be set if the card supports HDMI or DisplayPort audio and you want to use it. See the Radeon article for more details about using HDMI/DisplayPort audio.

Firmware
Microcode is required. Install either or  (contains also other firmware), either:

or:

If you compiled amdgpu directly into the kernel instead of as a module, make sure firmware for your model (check available ones in or ) is included in kernel:

Below is a list of the firmware files needed for each family/chipset of cards:

Driver
Portage uses the variable VIDEO_CARDS for enabling support for various graphics cards in packages. Setting VIDEO_CARDS to amdgpu radeonsi (see the feature matrix) will pull in the correct driver:

Check the USE flags of :