NetworkManager applet (nm-applet) disappears after upgrading to xenial

[Jay Hennessey]

After upgrading from Ubuntu wily (15.10) to xenial (16.04, LTS), the NetworkManager control applet (nm-applet) ceased to show up.
While running wily and even prior, I had modified /proc's "hidepid" argument to be 2, in accordance with hardening best practices in order to only allow users to see their own processes. Nm-applet was working just fine.

Based on this Debian bug (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=819808), I changed hidepid back to 0 (the default, which lets users see everyone's processes) and it's working again.

Given that nm-applet was working just fine in wily and upgrading to xenial broke it, it seems like a regression.

Wily version of network-manager: 1.0.4-0ubuntu5
Xenial version: 1.1.93-0ubuntu4

$ lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04

$ apt-cache policy network-manager
network-manager:
  Installed: 1.1.93-0ubuntu4
  Candidate: 1.1.93-0ubuntu4
  Version table:
 *** 1.1.93-0ubuntu4 500
        500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[rmillet (rmillet)]

It seems it was fixed upstream: https://bugzilla.gnome.org/show_bug.cgi?id=764502