[vexisu@PowerBook ~]$ sudo mhwd -a pci nonfree 0300
> Skipping already installed config 'video-hybrid-intel-ati-bumblebee' for device: 0000:00:02.0 (0300:8086:0166) Display controller Intel Corporation 3rd Gen Core processor Graphics Controller
> Skipping already installed config 'video-hybrid-intel-ati-bumblebee' for device: 0000:01:00.0 (0300:1002:6840) Display controller ATI Technologies Inc Thames [Radeon HD 7500M/7600M Series]