[gpm] OSD with compiz

[Paul Ionescu <i_p_a_u_l yahoo com>]

Hello all,

On a Fedora 9 system, the sound OSD ( when you press the volume/mute keys 
on a keyboard) are different for standard screen vs. compiz (Desktop 
effects enabled): 
- when the desktop effects are enabled, the OSD is a big semi-transparent 
box with the sound/mute action in it.
- when the desktop effects are disabled, the OSD is a small opaque box 
with the sound/mute action in it.

I want to activate the same behavior for the g-p-m OSD (brightness up/
down, etc) but I don't know how to do it. 

Is there a quick way to enable this ?