Fglrx

AMD Catalyst (previous fglrx: FireGL and Radeon for X ) is the proprietary graphics driver for AMD/ATI graphic cards. The open source alternative is radeon.

Hardware support

 * Force legacy driver:
 * Mask >=ati-drivers-12.6 and >=xorg-server-1.13:

Kernel
You need to activate the following kernel options:

Driver
Portage uses the variable VIDEO_CARDS for enabling support for various graphics cards in packages. Setting VIDEO_CARDS to fglrx will pull in the driver :

Check the USE flags of :

After setting this you want to update your system so the changes take effect:

Initial setup
This will generate an initial xorg.conf which uses the fglrx driver:

If this command fails without error, copy the file to the default location:

Set the OpenGL driver to use fglrx:

Settings
The most comfortable way for most users is to use as a graphical UI to configure the driver.

External resources

 * Community Gentoo Wiki article
 * X.Org Wiki