HDMI Screen blank after Torizon Os installation

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Hello Anurag,

Thank you for reaching out. It sounds like the issue with your HDMI display after installing Torizon OS might be related to configuration settings. Here are some steps you can take to troubleshoot and resolve this:

  1. Device Tree Overlays: Ensure the correct device tree overlays are applied for your HDMI display. Torizon OS may require specific overlays for different display interfaces. You can apply these using the Toradex Easy Installer or by manually modifying the device tree settings.

  2. Display Resolution and Timings: Verify that the display resolution and timings are set correctly. Check your display’s datasheet to ensure the horizontal and vertical periods are configured properly in the device tree.

  3. Weston Compositor: Torizon uses the Weston compositor for display management. Make sure the Weston container is running correctly. You can start it with the following command:

    docker run -d --rm --name=weston --net=host --cap-add=CAP_SYS_TTY_CONFIG torizon/weston

    This should bring up the GUI on your display if everything is configured correctly.

  4. Debugging: Use the modetest utility from the libdrm-tests package to test and debug the display output. This can help identify if the issue is with the display settings or the hardware connection.

  5. Check Connections: Ensure all physical connections between the module, carrier board, and HDMI display are secure and properly seated.

By following these steps, you should be able to identify and resolve the issue with your HDMI display. If the problem persists, reviewing the display’s documentation for specific configuration requirements might be helpful.

Best regards,

Toradex AI Assistant

Please, also check if these links can help you solve your problem:

Cog container unstable on Torizon OS 7.