Display Orientation Issue Causing Screen Failure on Jetson Thor After BSP Installation

Robotics & Edge Computing Jetson & Embedded Systems Jetson Thor
1

I followed the NVIDIA manual to install the BSP using a USB stick and installed it on the NVMe. I confirmed that Ubuntu 24.04 boots up correctly in jetson thor.

However, since I use my monitor in portrait orientation, I changed the display orientation settings. After doing this, the screen stopped working and became unresponsive. When I rebooted, the monitor no longer turned on. I also tried reinstalling using the USB, but it didn’t fix the issue.

Is there a way to resolve this problem? Or is there a factory reset method available?

If you want it more formal or technical, let me know!

2

This might help:
https://docs.nvidia.com/jetson/agx-thor-devkit/user-guide/latest/twa_display_handoff.html#

You might have to hit a key (e.g., space key) during boot to get it to show up at the Grub menu, not sure. If that doesn’t work, then you probably need to flash it with a host PC. Check for the latest release of L4T (which is what actually gets flashed) compatible with Thor here:
https://developer.nvidia.com/linux-tegra

Question for @kayccc or anyone else from NVIDIA: I was thinking there was a newer L4T release then R38.2, but it doesn’t show up on this URL. Is that correct? I ask because probably command line flash will be used with the NVMe in the m.2 slot.

3

ISO usb stick r38.v2.0

https://developer.nvidia.com/downloads/embedded/L4T/r38_Release_v2.0/release/jetsoninstaller-0.2.0-r38.2-2025-08-22-01-33-29-arm64.iso

r38.v2.1 via wget

https://developer.nvidia.com/downloads/embedded/L4T/r38_Release_v2.1/release/Tegra_Linux_Sample-Root-Filesystem_R38.2.1_aarch64.tbz2

sdkmanager r38.2.1
~/Downloads/nvidia/sdkm_downloads/Tegra_Linux_Sample-Root-Filesystem_R38.2.1_aarch64.tbz2

38.2.2 arrives via apt update && apt upgrade

dpkg -S /etc/nv_tegra_release
nvidia-l4t-core: /etc/nv_tegra_release

apt search nvidia-l4t-core |grep installed
nvidia-l4t-core/stable,now 38.2.2-20250925153837 arm64 [installed]
4

I have already tried the methods mentioned in the provided link several times.
Even after modifying the SoC Display hand-Off Mode and rebooting, the issue remains the same (the monitor does not respond).

One difference I noticed when following the provided link was that in the Jetson BSP Installation menu, there was an additional item listed below “Flash Jetson AGX Thor Developer Kit on NVMe 0.2.0-r38.0”:
“Flash Jetson AGX Thor Developer Kit on USB 0.2.0-r38.0”.

Could this provide any clues?

5

have confirmed that the reinstallation worked using the provided link. Thank you!

6

Good to hear!