GPU Temperature is Broken

[BourgonLaurent]

Issue

The current SMC keys to obtain the GPU temperatures are not working anymore. Seems like Catalina changed the keys.

Configuration

Running macOS Catalina 10.15.6 on MacBookPro16,2

Behaviors

Current behaviour

> ./osx-cpu-temp -g
0.0 °C

Expected behaviour

It should return the temperature of the GPU

> ./osx-cpu-temp -g
52.5 °C

Possible Fix

I think there is an error with the key that is searched.

[yllekz]

This is happening on Ventura on an M1 CPU for me.