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When i turn on my dell vostro a860 the screen is black.When I plug in external monitor shows pictures on both (monitor and laptop).When I disconnect external monitor the laptop works fine.The trouble is only when I turn on laptop I dont see anything just black screen.I must always conect and disconnect external monitor to work properly. Problem is on WINXP and WIN 7 Best regards Dejan

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Check your "display setting" and make sure your laptop monitor is set as the defaut monitor and not the extended. What you describe is that your laptop is using the extenal monitor as the default and your laptop as the extended.

To get to your display setting for
Win XP: just right click anywawhere on your desktop and click "propertery".
Win7: right click anywhere on desktop and click "personalize"

Once there, click on your "monitor" tab. You should see a drop down of the monitor thats connected. Choose your laptop monitor from the dropdown. Under the dropdown list make sure there is a check on "make this my main monitor"
Click the "OK" button and reboot.

Hope this help.

Posted on Jan 02, 2011

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Windows Vista® 1 Right-click an open area of the desktop. 2 Click Personalize. The Personalize appearance and sounds window appears. 3 Click Display Settings. 4 Select the external LCD monitor in the drop-down menu.Monitors and Displays 51 5 In the Display Settings window, move the Resolution slider bar to the left or right to select a screen resolution that matches the native resolution of the external LCD monitor. 6 Click OK. Windows® XP 1 Right-click an open area of the desktop. 2 Click Properties. The Display Properties window appears. 3 Select the Settings tab. 4 Select the external LCD monitor in the Display drop-down menu. 5 Under the Screen resolution section, move the slide bar to the left or right to select a screen resolution that matches the native resolution of the external LCD monitor. 6 Click OK.

Posted on Jan 02, 2011

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Shine a flashlight on the dark screen to see if you barelysee the icons on the desktop. If so, then the LCD Inverter is bad.

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Since you say the screen was blinking when you opened or closed the lid: 1) It could be as simple as the cable that attaches on the back of the monitor is loose and needs to be reseated (pulled out and plugged back in) then secure it with tape where the connections meet. 2) It could be that the cable from the monitor that plugs into the motherboard needs to be reseated. You'll need to disassemble the monitor to remedy the 2 problems mentioned. And for problem 2 mentioned you'll need to remove the Keyboard and Palmrest.

Have you shined a flashlight on the black monitor screen to see if you can faintly see images on it. If so, then the problem is your LCD Inverter. You can purchase them for less than $10, but you'll have to disassemble the lcd screen. It sits at the bottom of the lcd screen just above the keyboard.

If you don't see anything when you shine the flashlight on the lcd screen, then your screen is out and will need to be replaced.
Get a quote from your local computer shop, then try these guys:
httpp://www.generalsystemsconsulting.com
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2 Answers

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