[Bug 1873396] Re: Software & Updates hangs and won't close if IPv6 but no IPv4 connectivity

[Sebastien Bacher]

** Changed in: software-properties (Ubuntu)
   Importance: Undecided => Low

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Title:
  Software & Updates hangs and won't close if IPv6 but no IPv4
  connectivity

Status in software-properties package in Ubuntu:
  New

Bug description:
  I was running Ubuntu 20.04 beta x86_64 desktop without installing it.
  Went into Settings, to About, clicked "Software Updates", and up
  popped this window.  My LAN has public IPv6 connectivity but this
  machine's ethernet address was configured with an IPv4 address that
  doesn't have global connectivity, just local ethernet.  The window
  hung and would not close when I clicked the [X] in the upper right
  corner.  (Eventually I got the "Force Quit?" pop-up from the window
  manager and was able to successfully force it to quit.)  But -- its UI
  should always be responsive, no matter what is happening on the
  network.

  The bug-filing page here:

    https://bugs.launchpad.net/ubuntu/+source/software-
  properties/+filebug/1a28ffd4-807c-11ea-a586-0025b3df357a?

  told me:
  We also need:

  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
  2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
  3) What you expected to happen
  4) What happened instead

  But lsb-release isn't on this (uninstalled live iso) system:

  ubuntu at ubuntu:~$ lsb-release -rd

  Command 'lsb-release' not found, did you mean:

    command 'lsb_release' from deb lsb-release (11.1.0ubuntu2)

  Try: sudo apt install <deb name>

  ubuntu at ubuntu:~$

  I dno't know what "System -> About Ubuntu" means.  There isn't a
  "System" menu visible.  I did go to Settings -> About and it says
  "Ubuntu Focal Fossa (development branch)" -- but it won't let me
  select and copy that string!

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: software-properties-gtk 0.98.7
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu22
  Architecture: amd64
  CasperVersion: 1.442
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr 17 07:21:25 2020
  ExecutablePath: /usr/bin/software-properties-gtk
  InterpreterPath: /usr/bin/python3.8
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
  PackageArchitecture: all
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=C.UTF-8
   SHELL=/bin/bash
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu1
  PythonDetails: N/A
  SourcePackage: software-properties
  UpgradeStatus: No upgrade log present (probably fresh install)

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