Lenovo laptop not displaying any thing why?

Lenovo G450 laptop computer - 2949dxu -...
July 12, 2010 at 06:23:38
Specs: Windows XP
As i power on my laptop it atart but can not display anything it also show glowing led of hard disk but it is not displaying any thing please give any solution...

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July 12, 2010 at 08:02:35
Laptop no video (or video problems), and battery, AC adapter, power jack T shooting.

See response 1:

DO NOT plug in or unplug a monitor's video cable into / from a video port while the computer is running. Doing so can damage the monitor's circuits and/or the video adapter's circuits.

Some laptops will display on an external monitor without you having to do anything.

If you get no video on an external monitor, some laptops have a key combo that you must press to toggle the display to external video only / sometimes both / built in display video only - see the Owner's or User's manual for the model.

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