make sure you have installed Xorg, if not , # yum install -y Xorg

sh# lspci -v // or just glxinfo | grep render ??

Download http://support.amd.com/cn/gpudownload/linux/Pages/radeon_linux.aspx or sh# wget http://www2.ati.com/drivers/linux/amd-driver-installer-12-1-x86.x86_64.run

sh# chmod +x amd-driver-installer-12-1-x86.x86_64.run sh# ./amd-driver-installer-12-1-x86.x86_64.run –listpkg // check which system supported sh# ./amd-driver-installer-12-1-x86.x86_64.run –buildpkg RedHat/RHEL6 sh# yum localinstall -y fglrx_p_i_c-8.93-1.i386.rpm sh# aticonfig –initial -f sh# reboot

After reboot

lspci -k // make sure the adaptor have used your driver