My nx borad has two hdmi, one hdmi no output

There was sor0_dp_display and it was removed by yourself…

If you are new to device tree, please try to learn its rule first… it is from Linux kernel, not NVIDIA specific software…

I modify the file tegra194-p3509-disp.dtsi , disable dp port and add hdmi power in head part, build the kernel, the two hdmi port on the board work.I appreciate for your help,thanks.

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