Backlight Problem . .

Volumio Information

Volumio Version: Latest
Hardware: Sony VAIO VGN-CR31Z ( 3 GB RAM , 250 GB HDD )

Hi ! SO i just install Volumio on my OLD computer and yes it’s pretty good ! The problem is that the backlight is down so i can’t see anything . . . I tried so much thing but i still have a black screen . . . Plz i need help !