Garbled screen graphics after wake up Macbook from full battery drain
I have a 2008 15" MacBook Pro that does the same thing. Every time the battery drains, and I plug it back in, the screen will be completely distorted (but will go back to normal after reboot). Apple has replaced my logic board twice for this problem, and it still occurs. It's just an annoyance, as the laptop is still running great 7 years later. I wouldn't worry too much about it, unless it begins to happen while using the OS.