Support troubleshooting problem to display PC laptop HP G42-415DX

Hello, I have a HP G42 - 415DX Notebook PC with Windows 7 64 bit.

I have no display of the image on the screen and need help to understand where the problem lies.

I updated the Bios and installed all corresponding updates.

I reinstalled the graphics driver on the HP drivers section.

I showed a flashlight on the screen to see if it was just the light back, but there is still no image, the scrfeen looks like it's turned off.

I have the VGA output is plugged in and it works fine. I hit F4 and is currently on the computer only, even if the image of the screen is just all the external screen.

Is there a troubleshooting method to see if it's something on the motherboard as the graphics card or the monitor itself without buying it? Or am I just a bit stuck guessing and hoping that it works?

Appreciate any help

Thank you

M

Welcome to the HP, MG forum.

Our own Distinguished Professor HaggisCat addressed this type of issue and explains what could happen in the Post below.  This can help with the diagnosis on your own system.

Display on the laptop monitor displays briefly, then disappears at startup

Excerpt of the Post, HaggisCat comments:

The external screen works with Windows, which means that the video card and motherboard are very good. The laptop screen has disappeared, the backlight (s), the controller or the cable is defective. A part or the combination can cause a black screen.

 

Because you can't see anything with the light from the flash on the screen, the cable has failed or the screen itself needs to be replaced.

 

If you put a new screen and it still does not work then replace the inverter and if you still get nothing, the cable is the last thing that this will cause.

 

Sorry, sometimes the only way to diagnose a problem's substitution, but before you go out and buy new parts, I always suggest that you take it to a reliable repair shop to get a second opinion.

====================================================================================

You've done a lot, if not everything, what can be done on the software side.

More information about display problems:

Common issues with the screens

=====================================================================================

Good luck!  I hope this helps.

Tags: Notebooks

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