Probably worth resetting the SMC as it sounds like @mr_hyde did:Indeed . . .
LOL, whoever told you that is a moron.Of course "resetting the SMC" is just a fancy way of saying "yank the power cable out, count up to 20 and bung it back in again."
But . . . a long time ago I was told, "Never do that." Not, admittedly that is have ever stopped me on many occasions. 😇