Question about HP Pavilion dv4000 Notebook
My HP DV4000 has a strange LCD problem. When running on battery, it works fine, but as soon as I plug in the power adapter, it goes dim. External display works fine
Have you checked your power options in the control panel to see what they are set at? Has this always been a prob, or is it something that has just started?
Posted on Oct 26, 2008
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Posted on Jan 02, 2017
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Simply plug the ac adapter into the wall, the laptop will charge the battery itself.
Keep in mind this... in general, a laptop runs at full speed when it is plugged into the wall. When most laptops are running on battery, things are running more at 50% capacity to save on power, this giving you more battery life. A dimmer lcd and slowing the processor down when not needed are common traits.
You can use the FN key (function key) and the corresponding dim control on the keyboard to adjust the brightnedd of the backlight. It should be marked on your keyboard in a different color, like blue or maybe green (not familiar with that models keyboard).
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