Display port for TX2i is not working

Hello.

I’d like to know if DisplayPort DP0 and DP1 are supported in Jetson TX2i, Actually, we are replacing HDMI port to DP port.
I have modified dts is sudo vim /media/pbb/JetPack_4.4_Linux_JETSON_TX2I/Linux_for_Tegra/sources/hardware/nvidia/platform/t18x/quill/kernel-dts/tegra186-quill-p3489-1000-a00-00-base.dts
Here I made changes is for DP port.
but still, I’m unable to boot with DP port
The Dmesg logs getting like this please take look and help out me.

[ 457.563648] tegradc 15220000.nvdisplay: dp: HPD is not detectd
[ 457.563652] tegradc 15220000.nvdisplay: dp: Failed to read DPCD data. CMD 0x0
[ 457.563668] tegradc 15220000.nvdisplay: dp: HPD is not detected
[ 457.563671] tegradc 15220000.nvdisplay: dp: Failed to read DPCD data. CMD 0x0

[ 169.100795] tegradc 15220000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100
[ 169.123980] tegradc 15220000.nvdisplay: dp: aux read got error (0x10000100)
[ 169.123984] tegradc 15220000.nvdisplay: dp: Failed to read DPCD data. CMD 0xe, Status 0x10000100
[ 169.123988] tegradc 15220000.nvdisplay: dp: Failed to read ext DPCD caps
[ 169.123992] tegradc 15220000.nvdisplay: dp: Invalid link rate (0) or lane count (2)
[ 169.133320] tegradc 15220000.nvdisplay: dp: aux write got error (0x10000100)
[ 169.133324] tegradc 15220000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100
[ 169.138234] tegradc 15220000.nvdisplay: dp: aux write got error (0x10000100)
[ 169.138247] tegradc 15220000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100
[ 169.143547] tegradc 15220000.nvdisplay: dp: aux write got error (0x10000100)
[ 169.143552] tegradc 15220000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100
[ 169.148675] tegradc 15220000.nvdisplay: dp: aux write got error (0x10000100)
[ 169.148680] tegradc 15220000.nvdisplay: dp: Failed to write DPCD data. CMD 0x600, Status 0x10000100

Regards,
Parashuram

How about telling us what you’ve changed to your dts instead of only one sentence “Here I made changes is for DP port”?

Thanks for your reply.
Here I made changes is for DP port in this dts file tegra186-quill-p3489-1000-a00-00-base.dts
changes are below please take a look and help out me in this

sor {
status = “okay
dp-display {
status = “oaky”;
};
hdmi-display {
status = “disabled”;
};
panel-s-edp-uhdtv-15-6 {
smartdimmer {
status = “disabled”;
};
};
}; dpaux@155c0000 {
status = “okay”;
};

Hi,

Just another user ask similar questions at the same time. Maybe you could track this thread too.

Hi Wayewww,

DP is working for TX2i.
Thanks for your support.

Regards
Parashuram

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