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May012010

Why can I no longer adjust LCD brightness when using battery power?

Abhigyan asks:

I am using Windows 7 on my Dell Inspiron 1420. I have all the latest drivers installed. However, for some strange reason, I cannot change the brightness of my LCD while it’s on battery power. I could do so perfectly till a few days back. Any ideas?

Tagged: brightness, computer monitor, windows 7

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Johnathan TheTool Lane May 1, 2010

Ummm….I’m assuming you have something accidentally set in your energy savor settings that dims the LCD to save power. Try checking that out.
Matt Rider May 2, 2010

have you tried pressing Windowskey + x to get the windows mobility center…here you should be able to configure brightness
Anonymous July 16, 2010

I was able to solve the problem by removing and reinstalling the Dell QuickSet. Apparently, Dell QuickSet makes some weird changes to the power settings.

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