I just love the computer display screen, if you turn off the monitor, and then open the good, then black, repeat, please master Zhidianmijin, to solve this problem, I will thanks again!
I infer two questions! First: your monitor is out of order! (contact bad) second: your screensaver is open, but you do not know this is screensavers, the next screen you can use the mouse to try!
Is not your monitor set up power-saving mode, not black, you can try the black screen, move the mouse, or any number of letters on the keyboard, to see if it is bright
You have to repair it, and this is basically caused by the instability of the high voltage board
