I'm basically at my wit's end. I've done all i can do aside from replacing my logic board and top case. I'm trying to connect my MBP to an external display. I have a miniDP to VGA adapter, and an external keyboard. In the process of replacement my keyboard which failed because the cable doesnt even fit in the connector(damn you ebay) I broke off the bracket which crimps the data display cable into its connector, so when I boot now I not only don't have a keyboard but I only have a white screen. An external keyboard and monitor later I'm still having no luck getting my MBP to display on the external screen even with everything plugged in including the power adapter before boot. am i missing something or am I destined to replace this logic board and top case?