Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

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Display small rectangle flickering

Hello, I have MacBook Pro Mid 2012 OS X 10.10.3.

This week, see in the screen, over the doc, small rectagle flicking, the content is like rain tv noise.

See this video: https://youtu.be/Kg8WrjbMEsc

Thanks, regards from Costa Rica

MacBook Pro, OS X Yosemite (10.10.3)

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Hi, any new infos about this problem? It's the same here. I own a 13 inch non retina MBP Mid 2012 and have some of this flickering rectangular stripes at other positions on the screen. They dissapear when I open a new window and move this over the flickering stripes. Looks like a refreshing problem. Maybe the RAM? I don't know so I hope you have some new infos about this problem...

Greetings from Germany

Uwe

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Hi,

Same problem here.

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I also have a flickering rectangle very similar to the one in the video. I am on a 2012 i7 Mac mini with 2 thunderbolt displays. Rectangle only appears on one monitor at a time and the location of it is random. I am also running the latest yosemite. Due to audio and video production software I do not really wish to up/downgrade my OS as I have everything running very stable at the moment, just that rectangle appears randomly. It does go away for a bit if I move a window over it but it does eventually return.

Any other possible resolutions?

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I've been having similar issues on my Mac Mini 2012 connected via HDMI. Not little rectangles but bigger graphics glitches. I am fairly certain it is due to the newest os Yosemite. Ever since I have updated I have had these issues and so have other people online. I would suggest trying to install an older OS on the machine Pre-yosemite and see if you still have the issues. If so then it is likely a GPU glitch caused by a failing GPU/bad connection to LCD/ or least likely, the LCD/controller failing.

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