Unibody White MacBook display dims when laptop on top of another When you place an open display plastic unibody MacBook upon a closed display MacBook of almost any kind, the display will cut out when it goes past the ninety degree angle.  I am thinking its a pressure point issue or a magnet issue.  Though not entirely sure.

Its consistent enough to see it, but infrequent enough not to worry about it, since stacking laptops is a no-no, but occurs when doing mass imaging.

Has anyone else out there seen this strangeness?
What may be causing it?
I've had this happen to me a few times, and it is annoying. My best guess is that the magnets in one MacBook are tricking the other one into thinking that the lid is closed. I know that it's at least possible to intentionally trigger the magnet that detects if the lid is closed, and my guess is that the other MacBook has a magnet in close proximity that's triggering it.