Jetson Orin Nano Wake-Up Issues from eth0 and WAKE_N

Issue Overview

Users are experiencing difficulties with the Nvidia Jetson Orin Nano Dev board failing to wake up from the ethernet interface (eth0) and the WAKE_N pin. The primary symptoms include:

• Inability to wake the device using Wake-on-LAN (WoL) commands, specifically after enabling WoL with ethtool -s eth0 wol g.
• The system does not respond to attempts to wake it via the PCIE_WAKE pin or Magic Packet methods.
• However, users report that tying the PWR_BTN (pin 240) to ground successfully wakes the system.

This issue arises during sleep mode initiated by the command sudo systemctl suspend, where users expect the device to wake up via network commands. The problem appears to be consistent across various setups, impacting user experience significantly as it limits remote management capabilities.

Possible Causes

Several potential causes have been identified for this issue:

• Hardware Incompatibilities: The Jetson Orin Nano may not fully support WoL features in certain configurations or versions of JetPack.
• Software Bugs: Reports indicate that JetPack versions (e.g., 6.0 and 6.1) may not support WoL functionality, as noted in user discussions.
• Configuration Errors: Incorrect settings or parameters in the network configuration may prevent proper WoL operation.
• Driver Issues: The network drivers may not be optimized for WoL on the Orin Nano, leading to failures in wake-up commands.
• Environmental Factors: Power supply issues or thermal conditions could affect the board’s ability to wake from sleep.
• User Misconfigurations: Users may inadvertently misconfigure settings that impact wake functionality.

Troubleshooting Steps, Solutions & Fixes

To address the wake-up issues, users can follow these troubleshooting steps:

1. Verify Wake-on-LAN Configuration:

   • Ensure WoL is enabled with:

     ethtool -s eth0 wol g
     

2. Test Different Wake Methods:

   • Attempt waking using different methods:
     • Magic Packet
     • Tying PCIE_WAKE (pin 179) to GND
     • Tying PWR_BTN (pin 240) to GND (this method has been reported successful).

3. Check JetPack Version:

   • Confirm that you are using a supported version of JetPack. As of now, JetPack 6.x may not support WoL. Consider downgrading to JetPack 5.x where users have reported better results.

4. Review Release Notes:

   • Check the release notes for any updates or fixes related to WoL and wake functionalities. For instance, specific fixes for related issues might be documented in release notes.

5. Update Drivers and Firmware:

   • Ensure all drivers are up-to-date. Use the SDK Manager for updates and check for any firmware upgrades that might resolve compatibility issues.

6. Isolation Testing:

   • Test with minimal configurations:
     • Disconnect unnecessary peripherals.
     • Use a different power supply if possible.

7. Log Analysis:

   • Review system logs for errors during wake attempts:

     dmesg | grep eth0
     

   • Analyze logs from nvidia-bug-report-jetson.log for any relevant error messages.

8. Community Support:

   • Engage with community forums for additional insights or shared experiences regarding similar issues.

9. Documentation Reference:

   • Consult Nvidia’s official documentation regarding Wake-on-LAN settings and troubleshooting specific to the Jetson Orin Nano.

10. Best Practices for Future Prevention:

    • Regularly update software and firmware.
    • Maintain a backup of working configurations before applying updates or changes.

Recommended Approach

Given that tying PWR_BTN (pin 240) to GND has been successful for multiple users, this method is recommended as a temporary workaround until a more permanent solution is identified through software updates or patches.

Unresolved Aspects

The community continues to seek clarity on future support for WoL features in upcoming JetPack releases, particularly concerning versions beyond 6.x which currently lack this functionality. Further investigation into hardware-specific limitations may also be necessary.