Notebook display brightness low when plugging out power cable?

Discussion in 'Windows 7 Graphics' started by pstein, Jun 11, 2013.

  1. pstein

    pstein Honorable Member

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    As long as the power cable is plugged in in my notebook the brightness of my display is fine.

    But when I plug it out and use the battery the brightness becomes suddenly darker.

    Why?

    How can I prevent this switch-to-dark-screen?

    I found no corresponding option in the power plans

    Peter
     
  2. davidhk129

    davidhk129 Senior Member

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    Start > search box, type power options > Enter > on the right side of the Power Plan you have chosen, click Change Plan Settings > under On Battery, at Adjust plan brightness, move the slider over to the right side to increase brightness > click Save changes when you are done.

    P.S. You battery is a suspect.
     
  3. MikeHawthorne

    MikeHawthorne Essential Member
    Microsoft Community Contributor

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    Hi

    Pretty much every laptop I've used dims when you unplug it from the wall.
    I always assumed this was to save battery life.

    But as Dave said, there is a brightness adjustment.
    On my wife's Dell I still can't get it as bright as when it's plugged in.

    Mike
     
  4. badrobot

    badrobot Senior Member

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    The screen is one the most power consuming part of the laptop. This darkening happens just simply to save power when your laptop is unplugged. The settings can be found under Control Panel >>> Power Options.
     

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