Orin no HDMI output


After succesfully flashing the Orin NX module we now have no HDMI output. Our carrier board is designed to fit an Xavier NX and an Orin NX. With the Xavier NX the HDMI output is working fine but the Orin NX does not give an HDMI output at all. The console debug output works fine after flashing.

Our board is based around the “P3509_A01” board (! without the identifier EEPROM ! ).

I have tried 2 separate flash images for the ORIN NX:

  • The first was based around the Sample root filesystem sources (35.2.1) and Driver package (BSP) sources (35.2.1).
  • The second image was generated with the SDK manager.

In both flash images we disabled the EEPROM setting and the image boots correctly (ends with login que via console output) but does not show any HDMI output.

Any help is appreciated.

Kind regards.

How did you flash your board?

Hi WayneWWW,

We flashed via command line using:
sudo ./tools/kernel_flash/l4t_initrd_flash.sh --external-device nvme0n1p1 -c tools/kernel_flash/flash_l4t_external.xml -p “-c bootloader/t186ref/cfg/flash_t234_qspi.xml” --showlogs --network usb0 p3509-a02+p3767-0000 internal.

Are you using orin nx 8gb or 16 gb module?


please add this patch because there would be wrong dtb in use.

+++ b/scripts/board_config/p3509-a02+p3767-0000.conf
@@ -55,7 +55,7 @@ update_flash_args_common()
        elif [ "${board_sku}" = "0001" ]; then
-               DTB_FILE="tegra234-p3767-0000-p3509-a02.dtb";
+               DTB_FILE="tegra234-p3767-0001-p3509-a02.dtb";
        elif [ "${board_sku}" = "0003" ] || [ "${board_sku}" = "0005" ]; then

Hi WayneWWW,

Thank you i’ll make the changes and try reflashing >> keep you updated.

If HDMI still not work, please also tell me if you have xavier nx devkit.

Hi WayneWWW,

After some time we found that the problem wasn’t related to the image but a HW issue with the level shifter for the HDMI (i wanna say I2C communication or EDID communication bu)s. The Xavier still produced an HDMI output with this board but had a fixed resolution so we expected the Orin to work in the same way.
With a different board it did produce a correct HDMI output.

Kind regards for all your help.

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