There is a great script created to check whether your system is compiz ready or not. It’s called Compiz-Check.
Gathering information about your system... Distribution: Ubuntu 8.04 Desktop environment: GNOME Graphics chip: nVidia Corporation G70 [GeForce 7300 GT] (rev a1) Driver in use: nvidia Rendering method: Nvidia Checking if it's possible to run Compiz on your system... Checking for texture_from_pixmap... [ OK ] Checking for non power of two support... [ OK ] Checking for composite extension... [ OK ] Checking for FBConfig... [ OK ] Checking for hardware/setup problems... [ OK ]
If you got [ OK ] in every check, like mine, then your system is ready to run compiz. If something fails, go check the forum 😀