$ beryl
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* Beryl system compatiblity check *
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Detected xserver : AIGLX
Checking Display :0.0 ...
Checking for XComposite extension : passed (v0.3)
Checking for XDamage extension : passed
Checking for RandR extension : passed
Checking for XSync extension : passed
Checking Screen 0 ...
libGL warning: 3D driver claims to not support visual 0x4b
Checking for GLX_SGIX_fbconfig : passed
Checking for GLX_EXT_texture_from_pixmap : passed
Checking for non power of two texture support : passed
Checking maximum texture size : passed (2048x2048)
libGL warning: 3D driver claims to not support visual 0x4b
Reloading options
beryl: dbus_bus_get error: Failed to execute dbus-launch to autolaunch D-Bus session
beryl: Plugin 'dbus':initDisplay failed
beryl: Couldn't activate plugin 'dbus'
Couldn't initialise dbus. This should not happen!