[Bug 1898814] [NEW] Under netplan with "renderer: networkd", Update-manager claims "No network connection detected, you can not download changelog information." even network is connected

[hogetaro]

Public bug reported:

My network is cofigured under netplan using "renderer:networkd".

Update-manager claims "No network connection detected, you can not
download changelog information." , even the network is connected

Even it's not a critical bug, Checking update detail with updatet-
manager is sometime so convinient for me. So Ill be happy if this fixed!


It seems UpdateManager/Core/roam.py does network connectivity check ONLY with NetworkManager statu via dbus. Checking network connectivity via netplan+networkd is also expected.
(or Why not use try-and-error way?)


1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
Description:	Ubuntu 20.04.1 LTS
Release:	20.04

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
  Installed: 1:20.04.10.1
  Candidate: 1:20.04.10.1
  Version table:
 *** 1:20.04.10.1 500
        500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
        100 /var/lib/dpkg/status
     1:20.04.9 500
        500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu focal/main i386 Packages


3) What you expected to happen
 In Update-Manager GUI, When I select a package name in "Details of update" panel, Content of "Changes" tab should show change details of the selected package.

4) What happened instead
Content of "Changes" tab shows the message "No network connection detected, you can not download changelog information." ,Even network is connected via netplan+networkd.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1898814

Title:
  Under netplan with "renderer: networkd", Update-manager claims  "No
  network connection detected, you can not download changelog
  information." even network is connected

Status in update-manager package in Ubuntu:
  New

Bug description:
  My network is cofigured under netplan using "renderer:networkd".

  Update-manager claims "No network connection detected, you can not
  download changelog information." , even the network is connected

  Even it's not a critical bug, Checking update detail with updatet-
  manager is sometime so convinient for me. So Ill be happy if this
  fixed!

  
  It seems UpdateManager/Core/roam.py does network connectivity check ONLY with NetworkManager statu via dbus. Checking network connectivity via netplan+networkd is also expected.
  (or Why not use try-and-error way?)

  
  1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu
  Description:	Ubuntu 20.04.1 LTS
  Release:	20.04

  2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center
    Installed: 1:20.04.10.1
    Candidate: 1:20.04.10.1
    Version table:
   *** 1:20.04.10.1 500
          500 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
          500 http://archive.ubuntu.com/ubuntu focal-updates/main i386 Packages
          100 /var/lib/dpkg/status
       1:20.04.9 500
          500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
          500 http://archive.ubuntu.com/ubuntu focal/main i386 Packages

  
  3) What you expected to happen
   In Update-Manager GUI, When I select a package name in "Details of update" panel, Content of "Changes" tab should show change details of the selected package.

  4) What happened instead
  Content of "Changes" tab shows the message "No network connection detected, you can not download changelog information." ,Even network is connected via netplan+networkd.

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