Same problem here. I had nm-applet icon showing up just fine on 17.04. After upgrading to 17.10 it disappeared, but I was able to get it back by using MATE Tweak to revert to a saved panel layout. Now, after upgrading to 18.04, it disappeared again. I am still able to recover it by reverting to a saved panel layout, but now I have to do it every single time I restart my computer.
If I add the Indicator Applet, I can get *a* network icon to show up, but it isn't the same as nm-applet, as it lacks a lock icon when using a VPN (and likely other differences). If I run sudo nm-applet, I get similar error messages to the ones already posted, though the icon does display while I have the terminal open and the command running. Here's my error message when running sudo nm-applet (running it without sudo generates no error, but also doesn't bring back the icon): (nm-applet:2874): Gtk-WARNING **: 09:19:30.075: Can't set a parent on widget which has a parent (nm-applet:2874): Gdk-CRITICAL **: 09:19:30.274: gdk_window_thaw_toplevel_updates: assertion 'window->update_and_descendants_freeze_count > 0' failed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754458 Title: nm-applet symbol not displayed on mate (18.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-mate/+bug/1754458/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
