Laptop screen remains black even on external display.

Hewlett-packard / G56
August 4, 2012 at 20:52:21
Specs: Windows 7
I've got a notebook here and when I turn it on the screen remains black. Even when it's plugged into an external display it says there is no signal. The computer also makes the Windows startup noise a while after its turned on. Help?

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August 5, 2012 at 00:57:27
It will not show anything on the external display automatically. There will be a key or key sequence to toggle on the external screen once Windows loads.

With laptops there are a number of possible causes of display failure. The screen itself , it's inverter or backlight. The fine ribbon cable connecting it to the motherboard, or the graphics on the motherboard itself might have failed. If the latter then you are up for a new motherboard. Any of the former can be repaired. If toggling to the external display after windows has loaded does not work then you would lean towards graphics failure and a new motherboard.

Goin' Fishin' (Some day)

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