abhinay@gentoo ~ $ beryl-manager
abhinay@gentoo ~ $ **************************************************************
* Beryl system compatiblity check *
**************************************************************
Detected xserver : AIGLX
Checking Display :0.0 ...
Checking for XComposite extension : failed
No composite extension
beryl: No composite extension
Window manager warning: Lost connection to the display ':0.0';
most likely the X server was shut down or you killed/destroyed
the window manager.
**************************************************************
* Beryl system compatiblity check *
**************************************************************
Detected xserver : AIGLX
Checking Display :0.0 ...
Checking for XComposite extension : failed
No composite extension
beryl: No composite extension
Window manager warning: Lost connection to the display ':0.0';
most likely the X server was shut down or you killed/destroyed
the window manager.
compiz: No composite extension