After I Update my system today with a new kernel update from update repository, and after I restarting my system for that reason, the keyboard stop working! can’t write any thing with it, from boot tell login screen!
I try booting with filesafe from grub, but still have the same problem.
I can’t do any configure too for that reason!
And yes, I try using another keyboard in usb port without success 
I am using MacBook 3.1.
Thanks for any advice.