Originally posted by phreadom
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Intall linux-headers: sudo apt-get install linux-headers-$(uname -r) Remove older ATI driver: sudo sh /usr/share/ati/fglrx-uninstall.sh Intall new ATI driver: chmod +x ati-driver-installer-8.41.7-x86.x86_64.run sudo sh ati-driver-installer-8.41.7-x86.x86_64.run Edit Xorg manually if needed: sudo gedit /etc/X11/xorg.conf Edit Catalist manually if needed:: sudo gedit /etc/ati/amdpcsdb Check if Radeon driver is enable: lsmod | grep radeon Check if fglrx driver is enable: lsmod | grep fglrx Rebuilding your kernel module dependency: sudo depmod -a Disable Radeon driver if enable: sudo modprobe -r radeon Enable fglrx driver if disable: sudo modprobe fglrx Test 3D hardware acceleration on terminal: fgl_glxgears
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