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After waking, my MacBook Pro displays a colored geometric pattern...

J

JPS127

macrumors regular
Original poster
Oct 23, 2013
136
15
...that doesn't go away. It fills the entire screen, and—this has happened twice—I've had to restart the laptop, after which everything is fine. Any ideas about why this is happening, if it's happened to others, and what, if anything, I can do to stop it happening again.
 
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