My laptop fell down and now my screen does not display anything
try to press and hold Fn and F8 - this is to toggle screen setting to ext and back to LCD on laptop. if nothing happens turn off computer by pressing power button, unplug the ac adapter, remove the battery. remvoe residual electricity from computer by pressing power button 10 times. just plug again the ac and leave the battery out. Pres and hold the letter D and while holding that press the power button once and release both of them. it will perform the built in self test on the lcd. if nothing happens, turn off computer. press anf hold Fn and while holding it press power button. it will perform diagnosis on computer. if still nothing happens need to repalce motherboard and LCD.