iMac 5k w/ Cinema Display 2nd Monitor Graphic Glitch

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Level 1

0 points

iMac 5k w/ Cinema Display 2nd Monitor Graphic Glitch

Hello,

I am currently using an iMac 5k w/ an Apple Cinema Display as my secondary monitor, when I move any window or click anywhere the screen seems to refresh and create graphical artifacts wherever the refresh occurs, see video for more details:

https://www.youtube.com/watch?v=4zRaZ7yKyLc

OSX Yosemite: 10.10.2

Model Name: iMac

Model Identifier: iMac15,1

Processor Name: Intel Core i7

Processor Speed: 4 GHz

SMC Version (system): 2.23f11

Serial Number (system): D2**********Y14

Hardware UUID: ***********

Any help would be appreciated!

Thank you.

iMac with Retina 5K display, OS X Yosemite (10.10.2), null

Posted on Jul 7, 2015 10:58 AM

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Answer 1

Jason L

Community Specialist

Jul 9, 2015 8:49 AM in response to toxsid

Hi toxsid,

Welcome to Apple Support Communities.

The article linked below provides a lot of great information and troubleshooting suggestions that should help you resolve the graphical issue that you're seeing on the Apple Cinema Display that is connected to your iMac

Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support

Cheers!

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Answer 2

demdi75

Level 1

8 points

Jul 9, 2015 10:04 AM in response to toxsid

I'm sorry to hear you're having this problem. What video card do you have - the 290x or 295x? I ask only because I am looking at getting the same system and looking to run a 24" cinema display as a secondary monitor but was unsure if one card was better than the other for that purpose.

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