Hello,
Here is my problem: I generated nixos with the xfce desktop. Looks good to me and I have wifi active on my laptop.
I modified the configuration file to change to the mate desktop then i did: nixos-rebuild switch. Everything looks OK except when I log to the mate desktop I don’t have the network connection icon. A desktop without internet is a bit annoying!
I specify that I use Network Manager.
Assistance would be greatly appreciated. Thank you.