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rubicks
Asked: 2020-08-14 07:37:07 +0800 CST

Why is "Region and Language" missing from the `gnome-control-center`?

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I'm a sysadmin charged with maintaining user accounts on a Ubuntu 18.04 system. All of these unprivileged users use Gnome as their primary desktop manager, but none of them are able to change their own keymap. When such a user runs gnome-control-center, the window is missing any mention of locales or keymaps, like so:

enter image description here

How can I allow unprivileged users to change their own keyboard settings?

Edit: adding screenshot of "Languge Support" (gnome-language-selector)

enter image description here

Edit the second: adding information about the status of packages language-selector-gnome and gnome-control-center:

$ echo && date -uIseconds && lsb_release --all && apt-cache policy language-selector-gnome gnome-control-center

2020-08-13T16:38:21+00:00
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.4 LTS
Release:    18.04
Codename:   bionic
language-selector-gnome:
  Installed: 0.188.3
  Candidate: 0.188.3
  Version table:
 *** 0.188.3 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages
        100 /var/lib/dpkg/status
     0.188 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        500 http://archive.ubuntu.com/ubuntu bionic/main i386 Packages
gnome-control-center:
  Installed: 1:3.28.2-0ubuntu0.18.04.6
  Candidate: 1:3.28.2-0ubuntu0.18.04.6
  Version table:
 *** 1:3.28.2-0ubuntu0.18.04.6 500
        500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:3.28.1-0ubuntu1 500
        500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages

Edit the third: by popular request, the list of packages (and globs thereof) I previously purged from the system:

aisleriot
cheese
firefox
gnome-games
gnome-initial-setup
gnome-mahjongg
gnome-mines
gnome-sudoku
libreoffice*
remmina*
rhythmbox
shotwell*
simple-scan
thunderbird
transmission*
unity-webapps-common
gnome keyboard keyboard-layout locale

1 Answers

  1. tldr; this makes the "Region & Language" tab magically appear:

    $ gnome-control-center region

    Thereafter, every subsequent invocation of the gnome-control-center pops up with the region tab present and highlighted. I'll update this answer if I can explain what happened.

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