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Why do I get some kind of checkerboarding across my display and then a freezeup?

on occasion I get some kind of an odd what I'd call "Checkerboard" on and about my display. It does NOT affect my TV when I'm using it as an outboard 2nd display but on the built in only. Occasionally this ends with the system locking up and I have to reset using the power button. Yesterday it must have taken 4 or 5 resets to finally get things to settle down.

MacBook Pro

Posted on Mar 29, 2015 4:50 AM

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Why do I get some kind of checkerboarding across my display and then a freezeup?

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