quote:
Originally posted by SonicSam
Occasionally when AC plugged in, eventually for a quick second it will dim and get brighter, within a second.
does this happen right after you have plugged the laptop in?
If so, then that is very normal. With some laptops the switch from batt. to AC power does not happen instantly. Then there is also the issue that the software (OS) must follow the hardware, and sometimes this software needs some time to initialize the new mode too, in which is sometimes resets first (to start from the default settings so to speak). Hence you can get the 'flashing' of the screen when switching power mode. So, this does not necessarily mean Windows thinks you unplugged the laptop.
PS: If your laptop is old, the plug can suffer from wear and tear and there might be a momentairly loss of contact when you wiggle the plug in or out. Or even during normal use contact can be lost. This can cause the power plan to quickly switch too of course.
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