Hi, i installed catalyst 14.4 on my ubuntu 14.04 this week on my notebook (pavilion g4, amd dual graphics) following this tutorial:

https://www.youtube.com/watch?v=evqpassbyqA
and now my system recognize both cards, but when i try to switch from my amd/ati 7500/7600m (thames) to my amd/ati 7660g (Trinity) nothing happens, i reboot and nothing,
the option to enable/disable crossfirex just shows up when im "using" the low performance card, when i switch to the 7660g the crossfirex option disappears from the catalyst interface. Finally i tried to use the proprietary drivers selecting them on the system settings menu, but the drivers that i manually installed from that tutorial seem to be fixed.

Please, please help me, here are some screenshots from my pc, and some info i think might help, if you need another info please tell me.

https://dl.dropboxusercontent.com/u/...e%20GPU/13.png
https://dl.dropboxusercontent.com/u/...e%20GPU/15.png
https://dl.dropboxusercontent.com/u/...e%20GPU/16.png
https://dl.dropboxusercontent.com/u/...jo%201_013.png
https://dl.dropboxusercontent.com/u/...jo%201_014.png
https://dl.dropboxusercontent.com/u/...jo%201_015.png
https://dl.dropboxusercontent.com/u/...jo%201_016.png
https://dl.dropboxusercontent.com/u/...jo%201_017.png
PS: sorry about my bad english