Photoshop CC 2014: Screen now displaying random red rectangles over my image on MacOS 10.9

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  • Updated 4 years ago
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Photoshop CC 2014 had been working just fine up to now. It has started putting red rectangles on my image when I reduce it from full screen to anything smaller. They go away when I return to full screen size. Sometimes it's two parallel lines of identical red blocks; sometimes just one block. My screen shot show one block, but I got a total red block overlay of my image when I drew a b/w gradient across a mask.

I'm using a 13" macbook pro retina late 2013 running OS 10.9.5. I ran the Apple hardware test and it reported zero problems.

Pretty much has shut down my ability to get any work done using Photoshop. Would like to get back to work, so any ideas greatly appreciated!
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Philip Bowser

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Posted 4 years ago

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Chris Cox

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First, make sure you have all the Photoshop updates installed (2014.2.2 is the current version).

But you probably are hitting some of the Apple video driver bugs introduced in MacOS 10.9 (and not yet fixed in 10.10). You can avoid the driver bugs by disabling GPU drawing in Photoshop's preferences, then restarting Photoshop.

Apple is aware of the video driver bugs and working on solutions to them for MacOS 10.10.
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Philip Bowser

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Thanks, Chris! I disabled GPU and tried to re-create the situations that caused the red boxes and so far, none have appeared.

The first screen draw on a recent image took some time, with tiny boxes of image popping out of the background here, there, and everywhere. My first impression was THAT was going to be unworkable, but in a different way. However, once the screen filled in completely, all was well.

Wonderful to get such a quick response--many thanks!

Phil