Name of detect keyboard layout tool

This tool will show your current layout graphically:

gkbd-keyboard-display -g 1

This is the command used during setup for choosing your keyboard layout:

dpkg-reconfigure keyboard-configuration

But to make it auto-detect the keyboard, you need to change a setting in dpkg-reconfigure keyboard-configuration. I'm not sure what setting, though.

To change a setting, echo <packagename> <setting> <type> <value> | debconf-set-selections. For example:

echo "keyboard-configuration console-setup/ask_detect boolean true" | debconf-set-selections

Hopefully this helps you.

The program used to detect keyboard layout during Ubuntu installation is part of the ubuntu installer called "Ubiquity".

You can find the source code on the Launchpad project page or download the release used in your Ubuntu version using

apt-get source ubiquity

You can navigate in the code here: https://git.launchpad.net/ubuntu/+source/ubiquity/tree/?h=ubuntu/bionic-devel

The GTK GUI definition with the button "Detect Keyboard Layout" is here: https://git.launchpad.net/ubuntu/+source/ubiquity/tree/gui/gtk/stepKeyboardConf.ui Search for 'Detect Keyboard Layout', you will find 'deduce_layout'

I'm not 100% sure but I think the code that does the keyboard detection is here: https://git.launchpad.net/ubuntu/+source/ubiquity/tree/ubiquity/plugins/ubi-console-setup.py Search for 'deduce_layout', you will find 'calculate_keymap_button' (calculate_clicked), etc.

And here: https://git.launchpad.net/ubuntu/+source/ubiquity/tree/ubiquity/frontend/gtk_components/keyboard_query.py Search for 'ubiquity/text/keyboard_query_title'.

See also this webpage for easier navigation in the code: http://nullege.com/codes/search/ubiquity.keyboard_detector.KeyboardDetector

I hope it helps.

Install the console-data package.

sudo apt-get install console-data

Then run this command on the terminal:

sudo dpkg-reconfigure console-data

It will then allow you to change the keyboard layout.