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I'm on a 2019 MacPro running 2 x AMD Radeon Pro Vega II Duo 32 GB GPUs. For some reason, when I'm running both modules, Photoshop doesn't allow me to access the Graphics Processor Settings. I'm also noticing a significant performance decrease and whenever I click out of PS the canvas turns grey.
When I remove the second module and just run a single AMD Radeon Pro Vega II Duo 32 GB, everything runs fine and I'm able to access the GPU settings.
I've contacted Adobe, Apple and AMD and haven't found a solution yet.
Any help with this issue would be greatly appreciated.
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You may have to disable one, if not by removing it than in software.
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The thing about modern GPU processing is that it's not a simple one way flow, like it used to be.
Photoshop uses the GPU to perform actual data processing, and the result returned to Photoshop for further processing. It goes back and forth.
So you can see multi GPUs leading to confusion. Which one is receiving data, and which one returning it?
I appreciate your reply.
I understand where the confusion would come into play with PS trying to figure out which GPU to communicate with.
So when running two GPUs on MacOS, PS greys out the "Graphics Processor Settings" in preferences>performance. Does this indicate that PS doesn't recognize any GPUs at all or is that just confirming the communication issue between PS and the multiple GPUs? I'm asking because I also have a Windows machine with 2 Nvidia GPUs and PS doesn't grey out those preference settings. I find it odd that this only happens on MacOS.
Again, when running a single GPU on MacOS, that setting is available and everything runs perfectly fine.
Thanks again for your reply.
Any updates on this? having the same issue ((
Unfortunately I haven't figured this out. I've been in contact with Apple, Adobe and AMD and they just keep pointing the finger at one another.
I have the same problem. I need the "Use Graphics Processor" option enabeled in order to edit spherical panoramas. What is the solution?
After a year of dealing with this, the only solution I've found is to remove the second GPU module in order to get AI and PS to work correctly. Adobe, Apple and AMD have had nothing to offer in terms of an actual solution.
OK thanks for that! Huge bummer to lose a $5200 graphics card to fix a
program bug. I did see on another forum (and confirmed that it works) that
PS 2020 (Release12.2.7) works with both cards installed.
Hello everyone, I had a solution, try to reconnect maint monitor where is your photoshop usually stay to another gpu, and that option appears to me! Sounds crazy but it helped for me!
Thanks kined! That totally worked for me too.
Brilliant! THANK YOU, KINED!
same issue with my MacPro Radeon VegaII Duo. I don't understand your solution exactly…
oh resolved! you're a genious
I was spending hours of testing – omg. Best solution ever 🙂 Replug the Monitor. Now it is working. Thank you so much.