Samsung T220 suddenly black screen display how power is going on?

To save a new computer with the Sapphire 4850 Platinum Edition is a display Samsung t220.Just 2 weeks.Sometimes all of a sudden black screen display, the display is also power, but the main computer to work.How by switching the display invalid, but after a while, By the switch on the display can show up!
anything wrong in the end? Thank you prawns were ah!
in addition to a small problem, if the card problems will affect the power automatically display it? This is definitely what the problem is the display? Thank you

to buy the new T220, the display should not be, in all likelihood not display on the power play, contact is not good, all of a sudden all of a sudden get off, Zaicha should be forced to bear.