What is the correct dtb file to use for grub?

I have an Orin NX, and when using l4tboot the file /boot/dtb/kernel_tegra234-p3768-0000+p3767-0000-nv.dtb works fine. But when I add “devicetree /boot/dtb/kernel_tegra234-p3768-0000+p3767-0000-nv.dtb” to my grub config I loose cpu thermal monitoring and the fan spins at max rpm.
I need to use fdtoverlay to fuse the imx219 dtbo onto a base dtb file for grub. What is the correct file to use as the base?

Hi Jcwscience,

Are you using the devkit or custom board for Orin NX?
What’s your Jetpack version in use?

Could you share the steps how you perform this?

Sorry, never mind I worked something out.

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