Install An Ati Driver In Ubuntu Ultimate Edition

Install an ATI Driver in Ubuntu Ultimate Edition

Ubuntu Ultimate Edition is a version of Ubuntu with a custom software respository and new theme. It is based on Ubuntu Hardy Heron (8.04). There is an open source driver for the ATI graphics card called the “radeon” or “ati” driver. It replaces the proprietary “fglrx” driver from ATI Technologies. The “radeon” driver provides 2-D and 3-D acceleration for the ATI graphics cards and support for multiple monitors.


Installing the Driver

1. Open a terminal window which will be found under the “Accessories” section of the “Applications” menu.

2. Type the command “lspci -nn | grep VGA” to determine the graphics card name and chipset. You will get output that looks like:

01:05.0 VGA compatible controller [0300]: ATI Technologies Inc RS690M [Radeon X1200 Series] [1002:791f]

3. Type the command “sudo apt-get remove –purge xorg-driver-fglrx” to remove the “fglrx” driver. The “fglrx” driver conflicts with the open source “radeon” driver and can cause performance issues.

4. Reboot the computer.

5. Type the command “sudo apt-get install –reinstall libgl1-mesa-glx libgl1-mesa-dri” to ensure that the proper libraries are installed.

6. Type the command “sudo gedit /etc/modules” and remove the “fglrx” entry, if necessary.

Edit Xorg.conf

7. Type the command “sudo gedit /etc/X11/xorg.conf” to open the xorg.conf file.

8. Change or create the entry for the graphics card to look like:

Section “Device”

Identifier “Radeon 9600”

Driver “ati”

BusID “PCI:1:5:0”

Option “XAANoOffscreenPixmaps”


The “Identifier” entry can be any descriptive name. The PCI number is found out the beginning of the output in step 2. In this example, 01:05.0.

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9. Change the “Screen” section to reflect the identifier in the “Device” section. It should look similar to:

Section “Screen”

Identifier “Default Screen”

Device “Radeon 9600”

Monitor “Generic Monitor”

DefaultDepth 24

SubSection “Display”

Depth 24

Modes “1440×900” “1024×768”



10. Add the two following sections to the Xorg.conf file, if it doesn’t already exist:

Section “DRI”

Mode 0666


Section “Extensions”

Option “Composite” “Enable”


11. Check that the “ServerLayout” section reflects the screen identifier from step 9.

12. Save and close the Xorg.conf file.

13. Press the “Ctrl,” “Alt” and “Backspace” keys simultaneously to restart the X server.