Yet, another fix for Ubuntu Jaunty. I have a Sony Vaio FW with a ATI Mobility Radeon HD 3400 Series and compiz works with the fglrx driver.. but it doesn’t work very well. It lags when minimizing/maximizing windows and it also lags on a window resize. The Solution?
Ubuntu-X Swat team PPA! They have a PPA called XServer with no backfill functionality. This is all you need! Added the repositories to /etc/apt/sources.list update, upgrade and your’re done!

Aqui está um belo exemplo do potencial do linux. Do configuravel que é. Mesmo que não sejam fãs do matrix ou mesmo um utilizadores de linux dá para se deliciarem e desejarem ter um ambiente assim.