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Possible Duplicate:
Is my ATI graphics card supported in Ubuntu?

How can I install the ATI video card driver for Ubuntu 11.10?

Can someone please help me?

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marked as duplicate by Marco Ceppi Aug 14 '12 at 17:23

This question was marked as an exact duplicate of an existing question.

    
duplicate. before you post questions, try the search box – RobotHumans Apr 15 '12 at 23:48

The best driver, Gallium 3D, should automatically be enabled and installed.

Try running a 3D game like Neverball or Neverputt, you can find both in Ubuntu Software Center.

If they don't work install fglrx (not the post-release update) with Additional Drivers in System Settings.

screenshoot

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[...]if they don't work install fglrx form the AMD site [...] which is the newest one, – Uri Herrera Apr 16 '12 at 5:15

This steps worked for me and what you probabably should do is upgrade you ATI drivers. They have solved a lot of those issues you're facing on.

http://www.upubuntu.com/2011/12/how-to-install-amd-catalyst-1112-linux.html

For smooth installation, it is recommended to uninstall currently available Catalyst driver. To do this, use these commands from the terminal:

sudo apt-get remove fglrx*

To install the AMD Catalyst 11.12 Linux driver now on Ubuntu 11.10 (32-bit & 64-bit) or any older version, run this sequence of commands:

cd ~/; mkdir catalyst11.12; cd catalyst11.12/

wget -O ati-driver-installer-11-12.run http://www2.ati.com/drivers/linux/ati-driver-installer-11-12-x86.x86_64.run

If you have a 64 bit system, then install this before anything

sudo apt-get install ia32-libs

After that you can start installing the new ati driver:

chmod +x ati-driver-installer-11-12.run

sh ./ati-driver-installer-11-12.run

Make now an update for the X.org file with this command:

sudo aticonfig --initial -f
sudo reboot

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