Hello,
i installed Ubutu Mate 20.04 on a new Lenovo T15 Laptop.
Most is working linke expected, Wi-Fi comes up out of the box.
Unfortunately i can not get ethernet (cable, RJ45) to cooperate.
If i plug in the cable nothing happens, no link on the switch and therefor no dhcp etc....
The Interface does not come up.
NetworkManager know about my ethernet interface and i have checked "automatically connect". But i doesnt come up.
I can bring up the interface by hand with "ip link set up".
So it's no hardware problem.
Can someone suggest where to search for the problem?
regards
Johart