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Question: macbook pro must be restarted (booted) after charging with external power source

When I attach the power cord to my MacBook Pro 15", the computer goes to sleep and I must reboot it to get the screen back up. Recently I tried using this procedure: holding down the shift, control, option button along with the power button (after disconnecting the power cable) simultaneously for 12 seconds, then rebooting the computer and reattaching the power cord. This wa not effective. Any suggestions would be appreciated. I might add that I was on the phone with AppleCare for about 2 hours several days ago. They could not help me.

MacBook Pro with Retina display, macOS High Sierra (10.13.2)

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User profile for user: georgefromshreveport

Question: macbook pro must be restarted (booted) after charging with external power source