Orin AGX thermal difference and firmware

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
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I’ve read information about GPU power gating here: Thermal sensor data error in AGX Orin

All of my Orin AGXs running Jetpack 5.1 [L4T 35.2.1] exhibit this behavior. That is, the GPU temp sensor reads -256000 when the GPU isn’t in use. But I have one Orin AGX running Jetpack 5.0.1 [L4T 34.1.1] where the GPU temp can be read at any time even with no GPU processes running. I am trying to find an explanation in this difference in behavior. Can it be explained by the firmware difference? The Orin running Jetpack 5.0.1 is a 32 GB model and the rest are 64 GB models.

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Hi nbnv,

There should be few modifications from the early release.
The expected behavior for latest release is just like the thread you shared, it would report -256000 if the GPU is in idle.

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