My macbook won't start unless I connect an external keyboard and monitor

Basically after I turn it on it starts and then goes into sleep mode, the little light on the front indicates it is sleeping, if I try to wake it it doesn't. However if I hookup an external monitor and keyboard it starts up fine, but I can't unplug it from the external stuff unless I use something like insomniax and even then the mouse pad clicker doesn't respond (only the keyboard and trackpad itself). I suspect it has something to do with the sleep sensor but don't know where to look for that. I actually read something that indicated the batter connector is also the sleep sensor and I replaced it, but still no good. Does anyone know how the sensor works and where it is?
Any help would be most appreciated.

andtheflowerfalls
Had the exact same thing, only mine had a X in the battery symbol, did the SMC reset, fixed it, happened again, replaced the battery, same wash/rinse/repeat cycle. Have you recently upgraded to Mavericks? I did and my issues started happening afterwards.

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Post back
Message was edited by: Hawaiian_Starman

My macbook won't start unless I connect an external keyboard and monitor

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