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

Wed Mar 4 21:26:43 UTC 2020

I saw this bug mentioned on https://discourse.ubuntu.com/t/release-bugs-
for-week-commencing-monday-24th-february-2020/14540

with the comment "can’t confirm, lew activity, suggest we untarget from
rls set"

It would really be a shame if this stays the way it is now, since it is
annoying for those that are hit by it, although with an easy workaround,
just do anything else requiring authorisation, and then the toggles work
too. For example highlighting one source and then selecting edit and
then ok without do any changes. Or just repeating the mouse clicks until
it works like others wrote.

But those workarounds are not obvious for all new users.

I can reproduce it by trying to toggle the extra sources with my mouse, It seems to work every time with keyboard though, maybe that is the reason not to be able to reproduce?

This is on several different systems, both on physical hardware and in
virtualbox, ranging from 18.04 to 20.04 including all those in between.

And this is not just for the Canonical Partners repository, but any
repositories I have in a system.

On some system with not much extra or even fresh installs of 19.04 and
19.10 I can not reproduce it every time on the first try, but closing
software-properties-gtk down and starting it again seems to increase the
chance of a failure by a lot. So please try closing and opening a few
times if you can not reproduce the bug.

I am not sure but I think that app indicators like psensor and
indicator-cpufreq also increase the chance of failure to display the
authorization window.

If I try to toggle an apt source and do not fix it with one of the working functions, or by repeating the mouse clicks, but instead wait for the screenlock to come and then unlock it, I actually get an authorisation window in the upper left corner. It does take my password, but software-properties-gtk does not get notified by it then. 

Mint asks for authorising right away on starting their modified software-properties-gtk, so they do not get this problem.

If the bug can not be found and fixed in time for 20.04, could we then get a "unlock" button on the "Other Software" tab?
Once any of the other functions that requires authorization have been used, the toggles on the "Other Software" tab do work every time.
The "Revert" button actually gets active after the authorisation for the toggles fails, and that reliably opens the authorisation window.
So maybe it could start active but with the text "Unlock" and then changing to the text "Revert" after a successful authorisation.
Then there would be an obvious way for users that do not know the workarounds to toggle software sources, and those that do not experience the bug will not see any functionality changes.

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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 gnome-shell package in Ubuntu:
  Confirmed
Status in software-properties package in Ubuntu:
  Confirmed
Status in gnome-shell source package in Bionic:
  Confirmed
Status in software-properties source package in Bionic:
  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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