2 possible way that u did not has display
1st the led in the monitor has been broke down, the display will no longer appear, if u face this problem and it is under warranty go to change it, it will be expensive to change the LED in the monitor
2nd, graphic card broke down, so that no longer has display in ur screen
There are other problems with HP laptops. they are referred to black, blue , red screen, when we boot the system after booting , the screen keeps on changing the color of display without displaying the windows desktop screen. after 4 or 5 times restart it gets corrected.
Hi,
finally i try to heat dry (hot blow) in north bridge chip,i get video signal:roll:.but it's not long losting....:sad:yes when the system running high graphic applications.after that only not getting video display........i tried update bios also.