Fix remove section to not uninstall fglrx-modaliases; add PPA option
| <br />NOTE: If you enter your card information on AMD/ATI's driver page, it will offer you the Catalyst 9-3 driver to download. However, the Catalyst 9-3 driver doesn't support X servers past 1.5, and it will not work with Lucid! !!!SO BE CAREFUL!!! If you tried to install Catalyst on a system with one of these cards, see the 'Removing the Driver' section to restore the default/pre-installed drivers.<br /><br />
== Restricted Drivers Manager ==
NOTE: You must have the restricted repository enabled in System -> Administration -> Software Sources for this to work. You will be limited to the drivers for your version of Ubuntu that Canonical deems stable. This may not give you the latest drivers, but should be safest. On Ubuntu Lucid, this will install Catalyst 8.723, which is roughly equivalent to Catalyst 10-4. Go to the Restricted Drivers Manager (System -> Administration -> Hardware Drivers) and enable the "ATI accelerated graphics driver" (or double-click the "available driver" notification icon). Ubuntu will then install and configure the driver for you.
= Installing the drivers manually =
I recommend copying and pasting the commands (do not include the leading '$') to ensure there are no typing mistakes and speed up the install process. Remember to use Ctrl '''+ Shift''' + V or Shift + Insert to paste into the terminal (or go to the terminals menu, select edit and click paste).
$ sudo sh /usr/share/ati/fglrx-uninstall.sh # (if you installed a downloaded version of Catalyst)
$ sudo apt-get remove --purge fglrx* xorg-driver-fglrx
If you plan on using open-source drivers, you will need to reinstall some packages because Catalyst overwrites or diverts some key 3D libraries with proprietary versions. For more information on this issue, see [https://wiki.ubuntu.com/X/Troubleshooting/FglrxInteferesWithRadeonDriver this Ubuntu wiki page]