[GEM-dev] how to launch Gem with BumbleBee to use NVidia graphic card ?

[Jack]

Hello,

Is there someone who has installed BumbleBee on its Linux to activate 
its NVidia graphic card (with Optimus) and has succeeded to use Gem with it.
I would like to know how i can do to use Gem with my NVidia GT555M (with 
Optimus).
https://github.com/MrMEEE/bumblebee
I can launch application glxspheres that use the NVidia graphic card with :
$ optirun glxspheres
Maybe, i have to modify the source code of Gem to make it works ?
Any help would be appreciated.
Thanx.
++

Jack