Comment 4 for bug 1892014

> How do you define "right" and "wrong" in this context?

After selecting "Greece/Greek" in an operating system installer, users should be able to switch between English and Greek in the console, and IF they run a GUI, in the display manager (to type the password), AND in the desktop environment after login.

As far as I can remember, this was solved centrally in console-setup, up to 18.04.2, when layout switching stopped working.

These 3 use cases (console, login screen, display environment) are the essential ones, the "system defaults".
Now additionally, there's another need: in multi-user and multi-cultural environments, per-user settings might be needed.

IF there's need for that, then sysadmins should select a display manager and a desktop environment that supports it. So "most" of the users will still be using the defaults, while "some" of the users will have to go to the desktop environment settings and choose a layout different to the default.
But having the desktop environment support different layouts per user, should in no way cancel the defaults; it should not prohibit the console users or the all-users-have-the-same-language environments from typing Greek, like it does now.

What I'm proposing:
If I run `dpkg-reconfigure keyboard-configuration`, I'm presented with some questions/options.
Most installers like ubiquity or debian-installer ask the same questions/options.

So, /etc/default/keyboard ***SHOULD BE THE SAME IN BOTH CASES***.

I believe that's they key part, if we can agree on that we can the propose solutions. After 18.04.2, ubiquity generates a different /etc/default/keyboard than `dpkg-reconfigure keyboard-configuration`, and I think this is a bug in ubiquity.