Power scheme faulty [closed]

Posted by user40287 on Server Fault See other posts from Server Fault or by user40287
Published on 2010-04-15T05:41:41Z Indexed on 2010/04/15 5:53 UTC
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laptop

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screen

Hi,

I use a laptop. When I take the power cable out to run on batteries, the screen darkens, as it is no longer so bright, to save on battery power.

When I put the power cable back in, the screen brightens back to it's original brightness.

However, I have since replaced the power cable, and the screen remains darkened.

How do I regain the original brightness?

Thanks, Steve

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