Why does my external monitor keep disconnecting from my Mac?
Why does my external monitor keep disconnecting from my Mac.? I have tried everything that Apple support has offered and it still does not stop disconnecting. It is a Lepow monitor.
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Sounds to me like an off brand. Make sure your cables aren't off brand either.
If you are hooking up via anything other than HDMI, or mini-Displayport, make sure USB-C adapters have their own source of power.
If you are using VGA or DVI with thumbscrews, make sure the cables have the thumbscrews correctly used.
Use a magnifying glass to make sure the connector is firmly in place.
Macs older than 5 years old also have a CMOS/PRAM battery which can oddly enough affect port visibility.
Don't connect too many devices at once, or daisy chain a bunch of cables together. Simplify as much as possible.