How to solve the latency problem when the source driver of the Ubuntu 9.10 ATI Video Card is disabled

Solution to the Problem of maximum card latency caused by the closed-source driver of ATI graphics card:

Code:Sudo gedit/etc/APT/sources. List

Add the following sources:

Code:Deb http://ppa.launchpad.net/launchpad-weyland/xserver-nobackfill/ubuntu karmic main
Deb-Src http://ppa.launchpad.net/launchpad-weyland/xserver-nobackfill/ubuntu karmic main

Import key:

Code:Sudo apt-key adv -- Recv-keys -- keyserver keyserver.ubuntu.com dbdd06bf16e70e3e

Update:

Code:Sudo apt-Get update
Sudo apt-Get upgrade