Sorry, spoke a bit to soon. My workaround above doesn't actually work when I do LightDM+Unity, only when I do text boot (i.e. when I've done systemctl set-default multi-user.target (instead of graphical.target)), and start i3 with startx.
(Actually, when running Unity, the script *does* execute and *does* kill and start nm-applet again, but nm-applet doesn't show up as an icon in the taskbar. I don't know why.) systemctl restart network-manager always fixes the issue and can easily be put in a systemd unit file (see e.g. https://gist.github.com/nitely/3d5f10b4f686f5f96c95), but that seems rather heavy when it's just nm-applet that needs restarting, at least in my case. Also, I seem to have made a mistake in the script above - change post/*) to post) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1589401 Title: cannot view wifi networks after re-enabling wifi Status in NetworkManager: Confirmed Status in network-manager package in Ubuntu: Incomplete Bug description: after re enabling wifi, up-down arrows just like wired network. cannot see any wifi ssid. To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1589401/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp