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I have an HP laptop and an external LCD. Windows 7 is configured for dual monitor extended operations. When I first set it up the dual monitor works fine; however when I shutdown windows 7 and use my laptop in stand-alone mode the monitor remains blank. When I plug in the external LCD the desktop display on the LCD monitor only. Can anyone help me with this problem?

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Try using the Windows+p hotkey and see what that does. This should allow you to switch between displaying on either monitor, duplicating to both, or extending the screen on both.

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Did you try to cycle monitor outputs between Notebook only / Both / External only? It is a keyboard kombination, often Fn- F8 (at least on my Dell) ?

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