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Graphics card not switching on Macbook Pro

Why is Photoshop telling me I don't have enough video ram on my 2015 MacBook Pro?
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Here’s what I think is going on…

Your computer has 2 graphics cards like all MacBook pros of that era. The reason for two graphics cards was for your computer to be able to save battery life while on the go by using a less powerful one, then when plugged in, your computer could switch to the better one.

In Catalina (your current OS) this setting to enable graphics card switching was found in Energy Saver settings in system preferences. After Catalina…Big Sur and now Monterey, this setting has moved to “Battery”.

I’ve asked the computer to prefer only the more powerful card since you are plugged in most of the time but it’s not making the switch as it should. (usually requires a log out or restart to take effect.)

Therefore when you open Photoshop, it’s telling you “hey, you’re using the lower power graphics card. We want the more powerful one”.

Since this is not happening in Catalina, I suggest when you’re able, update the OS to the latest version of MacOS Monterey and after the update is complete, go into System prefs and then into Battery and uncheck “automatic graphics switching”. Restart and theoretically, the problem should be corrected. More info here:

Set graphics performance on MacBook Pro - Apple Support

Catalina was never great at the auto switching of graphics cards so I have higher hopes that the later OS will resolve this. Let me know if you have any questions.
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