Just started happening last week - when I open Photoshop and attempt to open a file, I get an unusable bright green workspace. If I zoom in and out I can see my image "flicker", so I know the data is there... but the green screen doesn't go away. Below, I've opened newgeo.tif. You can see that the preview loads fine. I'm on a MacBook Pro running Big Sur.
I should add that I have uninstalled and reinstalled Photoshop. No dice.
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That definitely fixed it. Must have happened after an update of either Adobe or MacOS. Now to figure out what the problem is with the GPU...
Try turning the GPU back on but then go to Preferences - Technology Previews and check Deactivate Native Canvas. You will need to close and restart Photoshop.
This allowed me to still utilize the GPU. Thanks!
Great thanks I had this problem to was driving me crazy!
Same thing happened to me.
I changed the size on my window from the top right had corner and it seem to help but I also did that what was recommended to be on the safe side
Hope this helps!