[Bug 1727908] Re: Software & Updates application does not permit changes on the "Other Software" tab

[Harald H.]

Can confirm that this is reproducible with the standard Ubuntu session
in 18.04.01 and 18.10, tested both with the vanilla install with no
updates and also fully updated.

However, notice a few things:
- If you repeatedly click the checkbox it will sometimes trigger the authentication window
- The issue is *only* reproducible when the user do not have the permission to apply the changes (ie. before triggering the authentication window).
It will also not be reproducible in a live session.

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https://bugs.launchpad.net/bugs/1727908

Title:
  Software & Updates application does not permit changes on the "Other
  Software" tab

Status in software-properties package in Ubuntu:
  Confirmed

Bug description:
  
  On the "Other Software" tab, I am unable to select "Canonical Partners".
  Similarly, the other checkboxes on the "Other Software" can not be clicked.
  Clicking on a checkbox has no effect, and a dialog requesting the admin password is not presented.

  However, activating or deactivating checkboxes on other tabs causes an
  authorization dialog to be presented to the user.

  I experience this bug in an an Xorg session.

  sources.list and sources.list.d have the following permissions:
  -rw-r--r--   1 root root  2897 Oct 26 22:35 sources.list
  drwxr-xr-x   2 root root  4096 Oct 26 21:29 sources.list.d

  All files in sources.list.d have the following permissions as this example:
  -rw-r--r-- 1 root root  189 Oct 25 21:50 google-chrome.list

  $ lsb_release -rd
  Description:	Ubuntu 17.10
  Release:	17.10

  $ apt-cache policy software-properties-gtk
  software-properties-gtk:
    Installed: 0.96.24.17
    Candidate: 0.96.24.17
    Version table:
   *** 0.96.24.17 500
          500 http://us.archive.ubuntu.com/ubuntu artful/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu artful/main i386 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: software-properties-gtk 0.96.24.17
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  NonfreeKernelModules: wl nvidia_uvm nvidia_drm nvidia_modeset nvidia
  ApportVersion: 2.20.7-0ubuntu3.1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Thu Oct 26 22:45:09 2017
  InstallationDate: Installed on 2017-10-26 (1 days ago)
  InstallationMedia: Ubuntu 17.10.0 2017.10.25 amd64 "Custom Artful Aardvark"
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: software-properties
  UpgradeStatus: No upgrade log present (probably fresh install)

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