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HP Laptop black screen at boot


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#1 bomber1712

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Posted 03 May 2016 - 07:33 AM

I have a HP 15-g029wm laptop  running 64 bit 8.1 that shows absolutely nothing on the screen. I can hear it firing up, lights light and blink, but screen stays black. I attached it to an external monitor, and it works like a charm. I have run through all HP and Windows updates, but still get nothing on LCD.

 

I am open to any suggestions. I would like to know if it's a hardware malfunction or a driver issue.  Anyone think an upgrade to Win 10 would fix it?

 

Thanks.



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#2 dc3

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Posted 03 May 2016 - 11:24 AM

If the monitor works then this could be either the backlight or inverter causing this.

 

Take a powerful flashlight and shine it on the screen to see if you can see the desktop.  If you can your backlight needs to be replaced.

 

If the desktop is not visible then there is a chance that this is the inverter and will need to be replaced.

 

There is another possible cause for this though it is not usual.  This would be that the ribbon cable has become detached or has been damaged.


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#3 bomber1712

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Posted 03 May 2016 - 08:25 PM

No dice. Screen is black. No ambient light coming from it at all. Nothing else to try? Diagnosis is bad hardware?



#4 dc3

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Posted 04 May 2016 - 09:54 AM

Since the monitor worked I would have to assume that this is the problem I suggested previously, yep... hardware.


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#5 bomber1712

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Posted 22 May 2016 - 09:40 AM

Just to close the loop, I replaced the monitor an its all good.



#6 dc3

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Posted 22 May 2016 - 09:57 AM

Glad to hear you got it sorted.

 

Just for clarification, a desktop uses a monitor, a laptop uses a display.


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