Ubuntu for Jetson 24.04 Server Thor EA release (Noble)

2025-10 Release Notes

Purpose

This is the Early Access release of Ubuntu 24.04 for Jetson AGX Thor.

Images

Ubuntu images can be downloaded from https://ubuntu.com/download/nvidia-jetson:

Hardware Platforms Tested

  • Jetson AGX Thor Developer Kit

Release Highlights

  • This is an early access release only targeting Jetson AGX Thor, it does not support the Jetson Orin development kits.

  • This release enables NVIDIA runtime on Ubuntu Server 24.04.

  • At this early stage, camera testing has been deferred to a later release.

  • The Linux kernel used on the Jetson AGX Thor (̀ linux-nvidia-tegra-ppadev-jetson`) is under active development and has not yet been added to the official archive. Please note that this kernel is not stable, and future updates may introduce unexpected regressions.

  • Migrating from this Early Access image to a future release will require switching to a different kernel meta-package.

Known issues

Issue

Description

2122501

The Bluetooth controller firmware rtl8852cu_fw is currently missing during boot, which prevents the Bluetooth service from functioning correctly. This issue will be resolved in an upcoming update to the linux-firmware-nvidia-tegra package. As a workaround, installing the nvidia-l4t-firmware package can resolve the issue immediately. Refer to the documentation here: .

2121984

Connecting to a WPA3 802.11ax access point currently results in a kernel crash. This issue is still under investigation but can be avoided by Updating the development kernel.

2122572

The system currently exits suspend mode automatically after a few seconds, instead of waiting for a proper wake-up event (e.g., RTC alarm, keyboard input). This premature wake-up behaviour is a known issue and is expected to be resolved in an upcoming kernel update.

2122629

Some of the stress tests performed are based on stress-ng: stress-ng --af-alg 0 --timeout 30 --oom-avoid-bytes 10% --skip-silent --verbose. This command fails with the following error: tegra-se 8188120000.crypto: failed to allocate key slot. This issue is currently under investigation but can be avoided by Updating the development kernel.

2121341

Running CUDA workloads as a superuser will result with a Kernel crash. This issue is already fixed but requires Updating the development kernel.

2120690

Resuming the system from suspend mode may lead to a system freeze under specific conditions. This issue has only been observed when running the following command: sudo fwts uefirtmisc (from the fwts package). When this occurs, a full system reboot is required to recover.

2122571

Resuming the system from suspend mode may result in a black screen when connected to a 4K monitor. When this occurs, the system does not recover automatically, and a reboot is required.

2122580

Audio output is limited to the first connected monitor via DisplayPort or HDMI. If a second monitor is connected, or if the monitor is reconnected to a different port, sound output will stop functioning. A system reboot is required to restore audio playback.

2123881

GStreamer pipelines that perform transcoding from H.265 to AV1 currently fail with an error. This issue is under investigation.

2115050

Automatic power-on of the Jetson AGX Thor development kit may fail if a USB-C cable is connected to another machine. Depending on the automation header configuration, the system is expected to boot automatically upon power-up, but this does not occur in this scenario. Manual intervention is required to start the system. NVIDIA is expected to release a firmware update soon to address this issue.

2121989

The message “watchdog0: watchdog did not stop” appears during reboot. This is a known issue and is harmless.

Updating the development kernel

To update the development kernel, please run the following commands

sudo add-apt-repository ppa:ubuntu-tegra/kernel-daily
sudo apt update
sudo apt install linux-nvidia-tegra-ppadev-jetson

Report Bugs

To report a bug, identify the related package in https://launchpad.net/ubuntu , create a bug, then subscribe the team ubuntu-tegra to it. For firmware related issues, report a bug in the launchpad project.