Keyboard & mouse doesn't work when restarting from battery dying.

When my battery dies, I go to put it back on the charger. Once it is done loading the main log on screen, neither the keyboard or mouse won't work for a good minute or so. Once the screen turns black, then comes back, it works. Any ideas? Thanks!

Try plug an usb keyboard and a usb mouse. If the problem persists, you may reset the SMC and nvidia/PRAM memory.
If that doesn't do it, run the Apple Hardware Test .
Cheers,

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