Why do my USB ports constantly connect/disconnect when on AC power?
This is a two-part question. Both parts are directly related.
1.) When my device is charging (AC Adapter plugged in), my USB ports don’t function properly. Devices with a large current draw (I.E. my iPhone) constantly connect & then disconnect. Low-power devices (I.E. usb mouse, flash drives) function fine.
2.) When I unplug my device from AC power, the USB ports function fine with all devices, but my screen flickers.
I’ve eliminated the possibility of this being a software bug, it happens even in BIOS settings & on multiple OS’s.
I have a feeling this is something to do with a ground issue, or a power circuit, but I don’t even know where to start when it comes to those things without proper information. Which is why I’m here.
Thanks in advance.
Is this a good question?