It's something wrong with xavier nx devkit carrier board ethernet LED

[Hodu]

Hello,

It’s something wrong with xavier nx devkit carrier board ethernet LED

The green light doesn’t come on, can you figure out the cause?
I only installed jetpack 4.6.1.

Green circles indicate incoming orange LEDs
The red circle indicates that the green LED is not lit.

Thank you.

[WayneWWW]

The LED is programmed through vendor driver for the Ethernet PHY. There is no really true or false case for it.

For example, there are 3-LED cases and 2-LED cases. The mode may not be the same.

Change the speed from 1000 to 100 and then 10, and you may see the other LED light up.

[Hodu]

Hello,

I bought the xavier nx devkit.
But by default, the green light on the ethernet led does not come on.

Do I need to do any additional work after purchasing the original devkit?

Thank you.

[WayneWWW]

I already replied in previous comment.

Change the speed from 1000 to 100 and then 10, and you may see the other LED light up.

[Hodu]

Hello,

The green LED does not come on even if you change the Ethernet speed as follows.
What should I do?

Thank you.

[Hodu]

Hello,

Correct. Green light is on.

[Hodu]

Hello,

According to this table, the orange light should come on on the right side when connected with 100 megabytes, but it is strange that it doesn’t.
Can you test it yourself with the xavier nx devkit?

Thank you.

[WayneWWW]

Where is this table coming from?

[Hodu]

Google search.

[WayneWWW]

…Is that anything to do with Jetson NX?

[MtHiker]

I have a JNX dev kit which has 4.6 JetPack.
An amber LED shows link activity and a green LED does link speed.
when 1 Gbps, green LED is ON and when 10 or 100 Mbps, it is OFF.

You can test it with ethtool command:
$ sudo ethtool -s eth0 speed 10/100/1000 duplex full autoneg on

And check whether kernel detects the link speed:
$ sudo cat /sys/class/net/eth0/speed