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Screen flicker and flashing while editing in Photoshop on iMac running macOS Catalina

New Here ,
Feb 26, 2020 Feb 26, 2020

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Hi All, just started screen flickering / flashing on iMac Catalina whilst using various tools on an image / document. It has never done this before and I don't know if there has been a Photoshop problem / new software release which is causing it? Anybody else having the same problem at all?

 

Thanks

 

 

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Adobe Employee ,
Feb 26, 2020 Feb 26, 2020

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Hi there, 

 

We are sorry about the experience with Photoshop. Would you mind telling us if the issue started after the latest Photoshop update or a macOS update? Any other recent changes that you have done to the computer?

 

Please go to the Preferences of Photoshop, then Performance and uncheck the option to "Use Graphics Processor". Once done, quit and relaunch Photoshop to check if that helps.

 

Regards,

Nikunj

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New Here ,
Feb 27, 2020 Feb 27, 2020

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Hi, 

I can't think that it started with the last Mac OS upgrade as I have been on Catalina 10.15.3 for a while and it has only just started.

The graphics processor has always been unchecked as there were issues with Photoshop from the outset of me having this Mac 18 months ago, which did help initially.

Thanks

Ben

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New Here ,
Feb 18, 2021 Feb 18, 2021

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For me that was exactly the problem. Have you tried activating the graphics processor? The problem was resolved for me by doing that and restarting Photoshop. 

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New Here ,
Jun 21, 2021 Jun 21, 2021

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I ahve excatly the same problem. Nothing changed and sudenly it started flickering as I try to edit. My graphic processor is unchecked. I'm runing Mac OS 11.4. Did anyone solve this?

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New Here ,
Jun 21, 2021 Jun 21, 2021

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Try activating the graphics processor ans restart the program. For me it didn't work with the GPU unchecked.

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New Here ,
Jul 12, 2021 Jul 12, 2021

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May have the same problem but solved it temporarily by resizing the Photoshop window to fit the MacBook Pro display. Noticed it when I unplugged the larger external screen and the photoshop window was still larger than the macbook display. Can still replicate the issue if I make the window larger both on the macbook or the external screen... 

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Community Beginner ,
Jul 23, 2021 Jul 23, 2021

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Yup, when I disconnect the external screen from my MacBook I have the blinking issue. When I resize the Photoshop window to the size of the MacBook the problem goes away. That tells me the blinking it is an issue within Photoshop not allowing its window to be larger than the screen. 

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