AMD PCnet LEDs don't work as expected

[Dan Cooper]

Hello,
I have the following NIC:
06:01.0 Ethernet controller [0200]: Trident Microsystems 4DWave DX [1023:2000] (rev 26)
        Kernel driver in use: pcnet32
        Kernel modules: pcnet32

It does operate normally, but the LEDs do not work properly. The 100 LED should indicate that a FastEthernet link is established, but it acts as a link LED.
The FDX (Full Duplex) LED does not light up at all, although it is connected with FUll Duplex (confirmed by my Switch and by ethtool). The ACT LED that should light up if network traffic occurs also doesn't light up.
The LEDs itself work properly, if I test them with ethtool, so they electronic seems to be fine.
sudo ethtool -p enp6s1

Ubuntu 5.11.0-16.17-generic 5.11.12

m@ryz:~$ lsb_release -rd
Description: Ubuntu 21.04
Release: 21.04
m@ryz:~$

Kind regards

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1928122/+editstatus and add the package name in the text box next to the word Package.

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