Orin NX/ AGX caught into boot loop if HDMI/DP connected #349
Description
Orin NX and AGX is caught into boot loop if HDMI/DP cable is connected.
Reproduce steps
Using Orin NX as an example.
Device preparation
Connect display to carrier board via DP/HDMI cable and *power on* display.
Source code
git clone https://github.com/anduril/jetpack-nixos.git
git rev-parse HEAD
(^^ prints d9530d5)
Build
nix build .#flash-orin-nx-devkit
nix build .#iso_minimal
Flash and dd
sudo ./result/bin/flash-orin-nx-devkit
sudo dd if=./result/iso/nixos-minimal-25.05.20250804.ce01dae-aarch64-linux.iso of=/dev/sdX bs=1M oflag=sync status=progress
Logs
Below are the last line of UART (before device reboot itself).
Jetson System firmware version 36.4.4-0978d5e6ec30 date 1980-01-01T00:00:00+00:0
0
ESC to enter Setup.
F11 to enter Boot Manager Menu.
Enter to continue boot.
Loading graphical boot menu...
Press 't' to use the text boot menu on this console...
Synchronous Exception at 0x000000045E1DE8E0
Synchronous Exception at 0x000000045E1DE8E0
ASSERT [ArmCpuDxe] /build/edk2/ArmPkg/Library/DefaultExceptionHandlerLib/AArch64/DefaultExceptionHandler.c(345): ((BOOLEAN)(0==1))
Resetting the system in 5 seconds.
Shutdown state requested 1
Rebooting system ...