Re: Laptop making weird squealing noise/monitor flickering
Update: Noise is not noticeable when AC adapter not plugged in. Now, when AC adapter is plugged in, noise is very loud, extremely high-pitched, coming from the area where the adapter plugs into the computer, and after a few minutes monitor goes EXTREMELY dim - not totally black, but too dim to be seen without a flashlight - and the noise stops as soon as the monitor goes dim. Once this happens monitor is dim even after AC is unplugged and computer must be restarted.
Once computer is restarted and run solely on battery, the monitor flickers a little but is visible (dimmer than normal), and the high-pitched noise is no longer noticeable.
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