Imac - turn off screen divided into two grey tones

My Imac - Model 2020 27‘‘

Bought end november 2020

after installing OS big sur before I turn it off the screen turns into two halves - light grey and dark grey.


Anybody else experiences this?

iMac Line (2012 and Later)

Posted on Dec 16, 2020 4:50 PM

Reply
4 replies

Dec 19, 2020 5:52 PM in response to jdo_apple

Hi jdo_apple


thank you so much for your help!


I had a chat with apple and they recommended me that solution too.

It helped for a while and yesterday when I turned the computer off it did happen again.


I feel this is not hardware related as it occurs irregularly. The more I read about the Big Sur Update I think this might be an issue with this new OS.

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Imac - turn off screen divided into two grey tones

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