Blank screen on boot & Orin nano custom carrier board

Robotics & Edge Computing Jetson Systems Jetson Orin Nano
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1

Hello NVIDIA team,

I am working with a Jetson Orin Nano on a custom carrier board.
With the official devkit (using DisplayPort), I can see the complete boot sequence: UEFI menu, NVIDIA logos, and kernel logs are displayed from power-on until the Ubuntu desktop appears.

However, on my custom carrier board (using HDMI output), I cannot see anything during boot. The screen stays blank until the Ubuntu desktop manager comes up. There is no UEFI menu, no NVIDIA logo, and no kernel messages over HDMI.

Environment:

  • Jetson Orin Nano

  • JetPack 6.2 (L4T r36.4.4)

  • Flashing command used:

sudo ./tools/kernel_flash/l4t_initrd_flash.sh \
  --external-device nvme0n1p1 \
  -c tools/kernel_flash/flash_l4t_t234_nvme.xml \
  -p "-c bootloader/generic/cfg/flash_t234_qspi.xml" \
  --showlogs --network usb0 p3509-a02-p3767-0000 internal

Question:

  • Is HDMI expected to show bootloader/UEFI and kernel messages on JetPack 6.2 r36.4.4, or is this only supported on DisplayPort?

  • If HDMI seamless display during boot is possible, what additional configuration or device tree changes are required for a custom carrier board?

Thanks in advance for your support!

4

Is your issue just UEFI part has issue or even the kernel part has no GUI shown up?

5

The issue happens in both stages.

  • During UEFI: no menu and no NVIDIA logo appear on HDMI.

  • During kernel boot: no console output or kernel messages appear on HDMI either.
    The display only becomes active after the Ubuntu desktop manager starts.

6

Do you have other kind of monitors that can test ?

Do you have Xavier NX devkit carrier board that can test this monitor on your side?

7

I have already tested with multiple monitors (HP, ASUS, and also a Philips display), but the behavior is the same on all of them — HDMI stays blank until the Ubuntu desktop manager comes up.

On the same monitors, when using DisplayPort on the Orin Nano devkit, everything works fine (UEFI menu, NVIDIA logo, and kernel logs are visible).

Unfortunately, I do not have a Xavier NX devkit carrier board available to test this monitor on my side.

8

Hi,

Is the monitor giving out expected mode in Linux kernel GUI?

9

Yes, there is no problem about resolution or no error log in dmesg

11

The problem about in hardware side HDMI connections. Thanks for your time !

12

Could you share what kind of hardware issue did you fix there?

I just wonder what kind of error would lead to issue only in UEFI but fine in kernel.