Hello

Laptop Model : HP 510

This laptop screen is giving me weird problems. A White screen with lines that turns bla you can't see the bios or nothing its almost as the screen is broken.

But now and then the screen works fine and you can see everything windows logo and logs PERFECTLY in. I have tried to PUT in an external screen into the vga port nothing shows there.Only visuals is gone when white screen comes up because you can still log into windows and hear it bootup and everything so I doubt it is software related.

Here is pictures to show you what it does from Start and stays like that and becomes black and you have to switch off the PC off and on again but by still doing that it still has the issue just now and then like 1 in 80 times I get the screen to show normally again.

Remember can't see bios either can't see anything from start just that white screen.

[/img]

White Screen from Bootup



White Screen becoming Black



More Black until Pitch black

If you have questions please ask I want to know if it is the connection to the screen(cause sometimes screen workds fine) or motherboard.

How do I analyze where the problem is

Kind Regards

RubenDoes the screen work if you move the display as if your going to close it or open it wide open to its most open position? If it shows every once in a while when opening or closing it while booted, then its likely that its the ribbon cable between the display and motherboard that is not seated properly or the ribbon cable has a break in it. I have also seen this when there is a bad solder joint on the display itself to where if you lightly flex the top left and right corners opposing direction to just slightly twist flex the display it comes and goes. Knowing when you can get it to come into it or act up will pin point ribbon or display. However I would open the laptop up if you know what you are doing and verify that the ribbon looks good and is plugged into the motherboard securely.

As far as getting display output to a VGA monitor, you may need to use the FN (function key) with another key to enable the external VGA display port.Thanks I am not allowed to open the laptop though I did take it into an IT Shop will see what they say