Jetson Xavier NX HDMI RGB output data problem

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

Hi:

I am currently working with the Jetson Xavier NX development board and attempting to output an HDMI signal in RGB888 Full Range format. However, when I capture and parse the HDMI output signal, I notice a discrepancy between the received data and the expected values.

Here are the details of my setup and the issue:

  1. Configuration Code:
    setup Xorg enviroment:
    sudo /usr/bin/Xorg -ac -noreset -nolisten tcp&
    and I created the below xorg.conf

    image
    image553×869 27.2 KB

  2. Command Used to Send Data:
    xsetroot -solid '#D2D3D4'

  3. Received Data:
    #D2D3D5

Despite ensuring that the HDMI output is set to RGB888 Full Range, the captured signal does not match the expected values. I have tried different methods to capture the signal, but the issue persists.
Could you please provide guidance on how to resolve this discrepancy? Additionally, if there are any known issues or recommendations for configuring HDMI output on the Jetson Xavier NX, I would greatly appreciate your insights.

4

Hi,
Please try this:
Different RGB values from expected at output from Jetson Xavier NX Developer Kit - #9 by smaximz

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