How to install ati video driver on a centOS machine

This took me around 2 weeks to complete.

Here are the proper (easy) steps on how to do it

1. Update your linux kernel, install the tools then restart your computer (root)

$yum install kernel-devel
$yum install gcc
$yum install gcc-c++
$yum install make
$yum update kernel

2. download the driver here

3. run the driver from the command line (as root)

$./ati-driver-installer-9-1-x86.x86_64.run

4. run aticonfig

$aticonfig –initial –force

5. check if driver is working

$fglrxinfo
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: Radeon X1550 Series
OpenGL version string: 2.1.8395 Release

$glxinfo | grep direct
direct rendering: Yes

If this did not work, check the install logs (/usr/share/ati/fglrx-install.log)

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