Looking at the changelog I see that the new conf.d file is a debian addition. The relevant changelog says:
* network-manager.postinst: Don't create /etc/NetworkManager/conf.d/10-globally-managed-devices.conf override on new installations. We don't want NM to manage non-wifi/wwan on servers/cloud instances, and for desktops live-build now installs a netplan policy snippet to let NM handle all devices. -- Martin Pitt <martin.p...@ubuntu.com> Thu, 18 Aug 2016 08:42:16 +0200 Yet on my system there was no netplan, netplan is a dependency of "ubuntu-standard". Installing ubuntu-standard hasn't changed anything. I wonder how this was expected to work on upgrades. In any case, I think that the "wwan" vs "gsm" is a separate bug that needs investigation. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1716034 Title: Network manager stops managing Ethernet links after upgrade Status in network-manager package in Ubuntu: Confirmed Bug description: After upgrading Ubuntu, it stopped configuring the word connection on my headless computer (super annoying to deal with). In any case, it was an issue with NM config change that caused my wired device to become unmanaged. There are several people discussing this here: https://askubuntu.com/questions/882806/ethernet-device-not-managed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1716034/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp