I have Jetson Orin AGX and NX boards. For display I am using a 4K medical monitor which has HDMI input. When I connect to the display, I am not able to see anything on the display. If I connect to any other display i am able to see 4K display.
Can this be because of HDCP being enabled ? If yes how can I disable the HDCP.
Hello @ngs.kec,
I am not sure if DHCP is causing you the issues you are experiencing, however, I found this on the NVIDIA Jetpack sources:
kernel/nvidia/drivers/video/tegra/dc/hdcp/hdmihdcp.c
Seems to be the driver in charge of DHCP.
It seems to have some debugging built into it.
You might want to try connecting to the board via ssh or UART while you plug it into your medical monitor so that you can try to get some sort of error log.
If you are able to access the board while the display is not working, you can start by reviewing the output of dmesg, you can even filter it for hdcp
dmesg | grep *hdcp*
Please share the output of dmesg with us, so we can try to help you debug.
regards,
Andrew
Embedded Software Engineer at ProventusNova
Not supported and kernel/nvidia/drivers/video/tegra/dc/hdcp/hdmihdcp.c is not for Orin to use either.
Those display driver no longer works for Orin. They are for Xavier and previous SoC.
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Thanks for the hint @WayneWWW !
Any idea of why the 4k medical monitor might be giving issues to @ngs.kec ?
regards,
Andrew
Embedded Software Engineer at ProventusNova
Please dump the dmesg / xrandr result and also /var/log/Xorg.0.log.
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