metal app not triggering discrete gpu

Hello,


After a recent update of Catalina, our metal app stopped using the discrete gpu (instead scheduling all work on the macbook's integrated gpu). I've confirmed that we are setting up metal with the discrete gpu's device.


Is this a known issue? Has the API changed somehow to trigger automatic graphics switching?


mike

Replies

I have this exact same problem. MTLCreateSystemDefaultDevice() no longer switches the graphics to discrete. What gives?


Greg