why is my screen two different shades? it's split in the middle, two different shades, why?

[Android Central Question]

My screen on my chrome pad is split in half with two different shades, How can I fix this?

 

[B. Diddy]

Welcome to Android Central! Which one do you have? I see that sometimes on my Lenovo Chromebook Duet (1st gen). It goes away if I reboot it.

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