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Laptop image goes faint only when plugged in..??

Discussion in 'Hardware' started by tngreg, Nov 5, 2008.

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  1. tngreg

    tngreg Thread Starter

    Joined:
    Oct 18, 2007
    Messages:
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    Ok this unit has the classic symptoms of an inverter going bad when plugged into the power source, BUT when you only run the laptop on battery the screen does not blank out (go faint).

    Typically when the inverter goes bad you can still see the image very faintly.
    This is a DELL Inspiron 8600.

    Any clues?:confused:

    Thanks
    tngreg
     
  2. cwwozniak

    cwwozniak Trusted Advisor Spam Fighter

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    First Name:
    Chuck
    Have you checked the power management settings? The screen brightness may be set to a low brightness level when running from external power.
     
  3. Sosic

    Sosic

    Joined:
    Nov 5, 2008
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    I had that same problem when I first got a laptop. Anytime the brightness changes when plugging or unplugging your laptop, 99% of the time it is because you have low brightness selected in your power management settings.
     
  4. tngreg

    tngreg Thread Starter

    Joined:
    Oct 18, 2007
    Messages:
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    Ok
    Let me clarify.

    1) Laptop plugged into power cord = Few minutes screen goes BLACK with very very faint image in background as if the inverter has gone out.

    2) Laptop on battery = Acts normal with bright screen.

    Brightness settings are set the same for both power and battery scheme.

    Any clues from some experienced techs on here would be greatly appreciated.
    Thanks
     
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