Black Screen after wake - i5-520m

Hi there and welcome to the forum...
I guess there are not a lot of folks in here which understand portuguese.
Would you be so kind to rephrase your question in english please?

It also would be helpful to have your hardware details listed either in your signature or in your profile, under the segment "About me".
At last, I will move your question with another headline into a new thread, since the one you used is rather old and doesn't talk about your issue at hand.