UI doesn't allow setting Left Ctrl as Compose

[Kevin Bullock]

In Ubuntu 20.04, I was able to set Left Ctrl as my Compose key using gnome-tweaks. I just upgraded to 22.04, where the Compose key settings have been removed from gnome-tweaks and moved into control-center, but Left Ctrl is not in the list of options for Compose.

I was able to restore Left Ctrl as my Compose key using:

$ gsettings set org.gnome.desktop.input-sources xkb-options ...

adding 'compose:lctrl' to that list, but it would be nice to expose it in the GUI.

For context, my modifier settings are:

* Caps Lock is Ctrl ('ctrl:nocaps')
* Left Ctrl is Compose ('compose:lctrl')
* Both Shift keys enable/disable Caps Lock ('shift:both_capslock')

which gives me both a Ctrl key on both sides of the keyboard and an easily-accessible Compose key.

[Gunnar Hjalmarsson (gunnarhj)]

Thanks for your report.

This is a design matter and should better be reported upstream:

https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues

If you report it there, please post the URL to the upstream issue here for tracking purposes.

P.S. Good that you figured out how to set it via the gsettings command. :)

[Kevin Bullock (kbullock+ubuntu)]

Thanks for the reply! Reported upstream here: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/1860

And patch submitted here: https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1328

[Gunnar Hjalmarsson (gunnarhj)]

Thanks!

[Launchpad Janitor (janitor)]

This bug was fixed in the package gnome-control-center - 1:46~alpha-2ubuntu1

---------------
gnome-control-center (1:46~alpha-2ubuntu1) noble; urgency=medium

  * Merge with Debian. Remaining changes:
    + Add gnome-control-center-faces package to share with unity-control-center
    + Install apport hook
    + debian/control:
      - Build-Depend on libwhoopsie-preferences-dev
      - Depend on language-selector-gnome & whoopsie-preferences
      - Depend on libgtk-4-media-gstreamer for Mouse & Touchpad art
        (LP: #2011849)
      - Don't depend on desktop-base
      - Recommend ibus
      - Don't recommend malcontent-gui
      - Don't recommend libnss-myhostname since we use systemd-resolved
      - Suggest instead of recommend gnome-user-share & realmd
    + debian/gnome-control-center-data.install:
      - Don't install gnome-control-center.pkla since we use
        policykit-desktop-privileges instead
      - Install additional assets used by unity-control-center
    * debian/ubuntu-logo-icon.png, debian/source/include-binaries,
      debian/gnome-control-center-data.install: Include an Ubuntu logo
    * debian/gnome-control-center-data.links:
      - Link audio-speaker-center* to audio-speaker-mono* so that an
        icon is shown in the test speaker panel. (LP: #1704002)
    + debian/rules: Enable whoospie integration
    + debian/rules: set SSHD_SOCKET=ssh.socket via CPPFLAGS in debian/rules.
    + Add patches:
      - keyboard-For-xkb-options-have-Layout-default-toggle-and-N.patch
      - keyboard-Avoid-modifying-xkb-options-when-user-changes-n.patch
      - u/keyboard-Add-launch-terminal-shortcut.patch
      - u/sound-Allow-volume-to-be-set-above-100.patch
      - u/Allow-tweaking-some-settings-for-Ubuntu-Dock.patch
      - u/background-Allow-configuring-the-ubuntu-accent-color.patch
      - u/multitasking-panel-Sync-workspace-and-monitor-isolation-d.patch
      - u/multitasking-panel-Sync-workspace-isolation-setting-on-ti.patch
      - u/Modify-Mulitasking-assets-for-accent-colors.patch
      - u/lock-Add-Lock-Screen-on-Suspend-option.patch
      - u/region-Add-Language-Selector-button.patch
      - u/Adapts-the-region-capplet-and-the-language-chooser-in-the.patch
      - u/shell-Change-the-default-height-so-all-category-are-on-sc.patch
      - u/connectivity-add-network-connectivity-checking-toggle.patch
      - u/diagnostics-Add-Whoopsie-support.patch
      - u/online-accounts-Hide-window-after-adding-an-online-accoun.patch
      - u/display-Support-UI-scaled-logical-monitor-mode.patch
      - u/Disable-non-working-camera-microphones-panels.patch
      - u/info-overview-Show-updates-in-software-propeties-instead-.patch
      - u/sound-Add-a-button-to-select-the-default-theme.patch
      - u/applications-Launch-snap-store-if-it-is-installed.patch
      - u/display-Allow-fractional-scaling-to-be-enabled.patch
      - u/mouse-Add-animations-following-the-accent-colors.patch
      - panels-mouse-Do-not-bind-sensitivity-to-touch-pad-setting.patch
      - CVE-2023-5616.patch: Use sshd socket
  * Refresh patches
  * Drop renamed .desktop notifications patch: the compatibility .desktop files
    were dropped long ago
  * Add patch...