Question about Dell Inspiron 9400 Notebook

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Have a Dell Inspiron 9400, when running off the battery the LCD is perfect, as soon as I plug into power the screen goes black. Ive tried multiple power supplies and still the same result?????

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You may need to change your power settings. it sounds like when you plug it in it goes into a mode thinking there is another monitor hold the FN key and press a key usually f5 that looks like a computer monitory. anyway plug in the pwoer cable, and hold fn and press the key that looks like a computer monitor maybe twice until the monitor comes back on let me know if that works!

Posted on Mar 17, 2011

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