apparently it's a kernel bug in 14.04's kernel as I've read before. Upgrading to 16.04 fixes it.
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-system-monitor in Ubuntu. https://bugs.launchpad.net/bugs/1310583 Title: System monitor not showing network traffic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-system-monitor/+bug/1310583/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs