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Screen Goes Dark on HP Pavilion Laptop

By sbasr54 ·
I have a HP Pavilion laptop that is supposed to be a less lighted screen when operating from the battery and gets lighter when plugged into AC. It Now does just the opposite, remaining light under battery power and going darker when plugged into AC. Help is greatly appreciated.

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Similar Dark Screen w/ AC Problem on Dell Inspiron 8100

by rick In reply to Screen Goes Dark on HP Pa ...

This customer laptop often used in docking station will go dark after time when on AC but work fine with battery only. If you use Fn+F8 to switch to external monitor, will temporarily brighten under AC but then go black. I suspect the problem to be the inverter going bad but I have never seen one go quite like this.

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Restore default screen brightness

by 1efc In reply to Screen Goes Dark on HP Pa ...

Turn off computer. Unplug AC, take out battery and press power for 1 minute to drain all engery. Put battery back in, plug in AC and restart computer. Immediately press F10 to get to set up. Say "no" in the screen that pops up and press enter. Press F9, pick yes, enter, then press F10. This will save defaults and restart your computer. If you have no damaged parts this will restore your brightness under AC. I paid $60 to get this info.

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by JamHussla In reply to Restore default screen br ...

Thanks a lot 1efc@... This helped to solve the problem I was having with a client's laptop.

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This will sort it out...

by colm_hand In reply to Screen Goes Dark on HP Pa ...

hold down the "FN" key(next to windows key)and keep pressing the F8 key, this will rais the brightness level.

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