Distribution: Debian GNU/Linux (4.0) Desktop environment: GNOME Graphics chip: ATI Technologies Inc ATI Radeon XPRESS 200M 5955 (PCIE) Driver in use: fglrx Rendering method: AIGLX
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... [FAIL] Checking for FBConfig... [ OK ] Checking for hardware/setup problems... [FAIL]
There has been (at least) one error detected with your setup: Error: Fglrx driver not properly installed, you are using the Mesa driver.
とあります, Fglrx driver not properly installed とありますので Fglrx が インストールされてないのはわかるのですが....