Nx dual hdmi setting

I tried to achieve dual HDMI output in NX module JetPack5.0.2, I have modified the Linux_for_Tegra/source/public/hardware/nvidia/platform/t19x/jakku/kernel - DTS/common/tegra194 - p3509 - disp. Dtsi device tree file, The original DP node was changed to an HDMI node, but it did not display the image as expected. I used this method successfully in the JetPack4.4 source, but failed in the JetPack5.0.2 source. Can you give me some advice?

Here is my modified device tree file in JetPack5.0.2.
tegra194-p3509-disp.dtsi (2.4 KB)

My advice is you can share the dmesg…

Tegradc 15200000.display: hdmi: can't get adpater for ddc bus 3 I have uploaded a more detailed system log file in this new topic.