Honor Student
Posts: 1
Member Since: ‎07-21-2012
Message 1 of 3 (2,095 Views)

why does my screen goes from bright (normal) to dim?

I hope someone can help.  My screen keeps going from bright (normal) to dim then back to normal .

Distinguished Professor
Posts: 2,520
Member Since: ‎07-10-2012
Message 2 of 3 (2,094 Views)

Re: why does my screen goes from bright (normal) to dim?

It could be a short in your power adaptor cable, break or crack in the power jack that the power adaptor plugs into, a failing power inverter (small long thin circuit board in the screen that converts DC back to AC) or some unusual setting in the power setting for the laptop. I have no idea what that last one actual is but I am guessing. Look at the notebook and note which lights are on when it is bright. See if the external power light goes out when it goes dim. This happens when you go from plugged power to battery.  Try to run the notebook with the battery out of the system for a day and see if you still have the problem. Maybe the battery is starting to short out.

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Posts: 1
Member Since: ‎09-07-2014
Message 3 of 3 (406 Views)

Re: why does my screen goes from bright (normal) to dim?

my does it to cant figure it out. Im using battert now, but it also happens when pluged in HP you have a prob;em

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