Issue with Jetson Orin Displaying to Monitor

Issue Overview

Users are experiencing difficulties connecting the Nvidia Jetson Orin Nano Dev board to monitors. The main symptoms include:

• Authentication Error: Initially, users encounter an authentication error that logs them out of the system.
• Connection Failure: After restarting the board, it fails to connect to any monitor, displaying either a blank screen or an "input not supported" message.

The issue occurs during the setup phase when attempting to establish a display connection via both DisplayPort (DP) to HDMI and DP to DP cables.

Relevant Specifications

• Hardware: Nvidia Jetson Orin Nano Dev Board
• Connection Types: DisplayPort to HDMI and DisplayPort to DisplayPort

Frequency and Impact

This problem appears to be consistent for affected users, significantly hindering their ability to utilize the board for development and testing purposes. The inability to display output limits user interaction and functionality, making it challenging to troubleshoot further.

Possible Causes

Several potential causes could lead to the observed display issues:

• Hardware Incompatibilities or Defects: Faulty cables or connectors may prevent proper signal transmission.

• Software Bugs or Conflicts: Issues within the operating system or specific applications could lead to authentication errors and subsequent display failures.

• Configuration Errors: Incorrect settings in the display configuration may cause the board not to recognize connected monitors.

• Driver Issues: Outdated or incompatible graphics drivers may hinder the display output.

• Environmental Factors: Power supply inconsistencies or overheating could affect performance and connectivity.

• User Errors or Misconfigurations: Improper setup steps or incorrect cable connections might lead to these issues.

Troubleshooting Steps, Solutions & Fixes

Here are comprehensive troubleshooting steps and potential solutions:

1. Reboot the Board

   • Power cycle the Jetson Orin Nano by disconnecting it from power and reconnecting after a few seconds.

2. Check Cable Connections

   • Ensure all cables are securely connected. Test with different cables if possible.

3. Verify Monitor Functionality

   • Confirm that the monitor is functioning correctly by testing it with another device.

4. Reflash the Board

   • If issues persist, consider reflashing the Jetson Orin Nano:
     • Download the latest JetPack SDK from Nvidia’s official website.
     • Follow instructions for flashing provided in the documentation.
     • Use commands such as:

       sudo ./flash.sh jetson-orin-nano-devkit mmcblk0p1
       

5. Update Drivers

   • Check for any available driver updates:
     • Run:

       sudo apt update
       sudo apt upgrade
       

6. Modify Display Configuration

   • Access display settings through terminal:

     xrandr
     

   • Ensure that the correct output is enabled and configured properly.

7. Test Different Output Resolutions

   • Use xrandr to set a lower resolution that is supported by your monitor:

     xrandr --output DP-1 --mode 1920x1080
     

8. Check Power Supply

   • Ensure that the power supply meets the specifications required for optimal performance.

9. Consult Documentation

   • Refer to Nvidia’s documentation for troubleshooting display issues specific to Jetson boards.

Recommended Approach

Multiple users have reported success by reflashing their boards as a first step in resolving these issues, making it a recommended approach if other methods fail.

Unresolved Aspects

Further investigation may be needed regarding specific software bugs in recent updates or driver compatibility issues that could be affecting multiple users. Continuous monitoring of forum discussions may provide additional insights into emerging solutions or workarounds.