````text id="41827"
# TTY Keyboard Layouts Without X

## Overview

A Linux system does not need a graphical environment in order to support
multiple keyboard layouts.

When working directly in a virtual console (TTY), keyboard configuration can
be handled at the console level without starting X11 or Wayland.

This is particularly useful on lightweight systems, minimal installations,
recovery environments, servers, and machines where a graphical stack is
unnecessary.

The configuration below provides three keyboard layouts:

```text
US  Ukrainian  Russian
````

with **Left Alt + Left Shift** used to switch between them.

---

## Configure the Virtual Console

Edit:

```bash
sudo nano /etc/default/keyboard
```

Use the following configuration:

```text
XKBMODEL="pc105"
XKBLAYOUT="us,ua,ru"
XKBVARIANT=""
XKBOPTIONS="grp:lalt_lshift_toggle,terminate:ctrl_alt_bksp,grp_led:scroll"
BACKSPACE="guess"
```

Apply the configuration:

```bash
sudo setupcon
```

The new layout can then be tested directly from the current TTY.

---

## Switching Layouts

The configured layouts are:

```text
US
UA
RU
```

Press:

```text
Left Alt + Left Shift
```

to cycle through the layouts.

The keyboard group indicator can be assigned to the Scroll Lock LED with:

```text
grp_led:scroll
```

if the hardware supports it.

---

## Why Not Win + Space?

`Win + Space` is commonly associated with desktop input-method handling.

A pure Linux virtual console does not provide the same input-method
infrastructure as an X11 or Wayland desktop session.

Therefore, if the goal is to keep the machine completely outside the
graphical stack, relying on `Win + Space` is unnecessary and generally
inappropriate for a TTY-only configuration.

The traditional XKB group-switching mechanism is sufficient:

```text
grp:lalt_lshift_toggle
```

This keeps keyboard layout handling inside the console environment itself.

---

## Useful Additional Options

The configuration above also contains:

```text
terminate:ctrl_alt_bksp
```

which enables:

```text
Ctrl + Alt + Backspace
```

as a console termination sequence where supported.

The complete configuration therefore combines three independent functions:

```text
grp:lalt_lshift_toggle
terminate:ctrl_alt_bksp
grp_led:scroll
```

They control:

1. Keyboard layout switching
2. Console termination
3. Optional layout indication through the Scroll Lock LED

---

## Applying the Configuration

After modifying `/etc/default/keyboard`, run:

```bash
sudo setupcon
```

If the configuration is intended to be the permanent system configuration,
it will also be applied during subsequent console initialization.

No graphical server is required.

No desktop environment is required.

No X11 packages are required for the keyboard switching mechanism itself.

---

## Minimal TTY Principle

For a lightweight Unix/Linux installation, this approach has a useful
property:

```text
Kernel
  
   Virtual Console (TTY)
        
         XKB keyboard configuration
               US
               UA
               RU
```

There is no need to introduce:

```text
X11
Wayland
desktop environment
graphical input-method framework
```

merely to obtain multilingual keyboard input.

The console can remain a console.

---

## Removing Unnecessary Graphical Components

Once keyboard configuration and other required functions work correctly from
the TTY, unnecessary graphical components can be reviewed and removed
separately.

This should be done as a **dependency-aware cleanup**, rather than by
blindly deleting packages associated with X.

Before removing anything, inspect which installed packages actually depend
on the graphical stack.

Useful commands include:

```bash
dpkg -l | grep -E 'xorg|xserver|x11'
```

and:

```bash
apt-mark showmanual
```

On Debian-based systems, package relationships can also be inspected with:

```bash
apt-cache depends <package>
```

and:

```bash
apt-cache rdepends <package>
```

The objective is not simply to make the package database smaller.

The objective is to leave a system with a clear dependency chain:

```text
TTY
 
  shell
  console tools
  keyboard configuration
  required system services
```

while removing graphical components that have no remaining purpose.

---

## Result

The resulting environment provides a clean multilingual TTY without
requiring a graphical session:

```text
TTY
 
  US
  UA
  RU
      
      
 Alt + Shift
```

This is a simple, traditional Unix/Linux solution: configure the console
directly, keep the dependency tree small, and do not install a graphical
subsystem merely to solve a keyboard-layout problem.

```
```