Enabling HDMI for AGX Orin

[sumin.lee]

Hello,
I am testing AGX Orin Production Module(32GB) with AGX Xavier Developer Kit Carrier Board.
I wanna test Enabling HDMI before using custom carrier board.

Those display port and pins look same for both AGX Orin and AGX Xavier.

• AGX Orin Dev Kit
  

• AGX Xavier Dev Kit
  

So, I expected I can see the display if i follow the guide.
https://docs.nvidia.com/jetson/archives/r34.1/DeveloperGuide/text/SD/Kernel/DisplayConfigurationAndBringUp.html#for-jetson-agx-orin-enabling-hdmi-on-custom-carrier-boards

Futhermore, I apply hpd setting as belows:

Enabling and display with HDMI on Custom Carrier Boards

Did you remember to add hotplug gpio according to your hardware design? --- a/hardware/nvidia/platform/t23x/concord/kernel-dts/tegra234-p3701-0000-p3737-0000.dts +++ b/hardware/nvidia/platform/t23x/concord/kernel-dts/tegra234-p3701-0000-p3737-0000.dts @@ -34,6 +34,7 @@ compatible = "nvidia,p3737-0000+p3701-0000", "nvidia,tegra234", "nvidia,tegra23x"; display@13800000 { + os_gpio_hotplug_a = <&tegra_main_gpio TEGRA234_MAIN_GPIO(M, 0) GPIO_ACTIVE_HIGH>; …

I tried both active_high and active_low.
All that result are no display.

And I can’t see the Orin’s debug uart on AGX Xavier Carrier Board.
So, I can’t get any boot log.

What can I try anymore?

[WayneWWW]

Hi,

Actually, there is no support for AGX Orin on AGX Xavier carrier board.

I don’t suggest to try this.

[sumin.lee]

Ok, I see.

I have one more question about enabling HDMI.

I found nvidia,tegra234-cec.txt under sources/kernel/nvidia/Documentation/devicetree/bindings/misc/tegra-cec/.

Do I need to set this configuration for enabling HDMI?
And where I put those in, If I need?

[WayneWWW]

No, CEC has nothing to do with HDMI bring up. It is just one function but not mandatory.