Im not able to use GPU processing with my mac, how do I use that. It says the graphics processor has uncovered an unrecoverable error with my M4 Mac chip

Hi ​@Joel Emerson, I'm just checking in to see if the suggestion helped or if you are still running into this issue? Let us know how things are going. Happy to keep troubleshooting with you if needed. Thanks! ^CH

Hi ​@Joel Emerson,

Thanks for reporting this. This message indicates that Lightroom has disabled GPU acceleration. Since you’re on an M4 Mac, this is definitely not expected behavior. 

Would you mind sharing a screenshot of Lightroom > Preferences > Performance > Hold Option key and showing the GPU section and any error message displayed

Also, please share the system info. Lightroom > Help > System Info. Copy & paste it here. Did this start after a Lightroom update, macOS update, or seemingly at random?

If possible, please also share a short screen recording showing the GPU error message and the slowdown you’re seeing when applying presets.

Once we have that information, we can investigate further and determine the next best steps.

Best,
Anshul Saini