Only one resolution in display preferences

[rolostudio]

Hello, i have a problem
in display preferences,
only one resolution.

GeForce 9500 GT
Gigabyte H55 USB3
Corsair XMS3 8GB
Core i7 870 2.93

Thanks

 

[samisnake]

are you using a dsdt from the database, or did you select easybeast?

 

[rolostudio]

thanks for the answer,
i'm newbie ,
i selected easybeast