Question about Dell Inspiron 640m Notebook

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Screen Dims ... ALOT

Sometimes my screen flickers, but until today the problem only occurredwhen the laptop was running on battery power - at that time I had afriend who is excellent with computers look at it and he said that theproblem didn't seem to be with the monitor itself (although it wasstill possible) but he suspected the battery sometimes didn't have thejuice to support it all the time...but now (today) the screen has begundimming while plugged in

FN+^/v arrows does nothing and the power options haven't changed


DELL INSPIRON 640m -> updates all installed & running XP Pro

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Try connecting an external monitor to the laptop. You may have to select the video output to display on the external monitor by holding down the blue <FN> key and pressing the blue CRT/LCD (located on one of the <F> keys, like F8,F9, etc..). If the problem occurs on the external monitor with the battery or AC power, then you have a problem with either the video card or motherboard in the laptop. If the problem does not happen using the external monitor then you laptop’s LCD display is going bad.




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Posted on Nov 18, 2008

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