### System details

- Omarchy `4.0.2-1`
- Hyprland `0.56.2-1`
- SDDM `0.21.0-7`, using Omarchy's Wayland greeter
- Laptop: Lenovo ThinkPad X1 Carbon Gen 10
- Internal display (`eDP-1`): 1920×1200 at 60 Hz, scale 1.25
- External display (`DP-7`): Lenovo Legion R34w-30, 3440×1440 at 60 Hz, scale 1.25
- Session monitor rule: preferred mode, automatic positioning, scale 1.25
- Session keyboard configuration:

  ```ini
  kb_layout = us,ru
  kb_variant = colemak,
  kb_options = compose:caps,grp:ctrl_space_toggle
  ```

  `Ctrl+Space` switches between US Colemak and Russian. A custom topbar indicator displays the active layout and can also be clicked to cycle layouts.

### What's wrong?

There are three related usability problems in the SDDM boot/login greeter:

1. **The greeter renders incorrectly with both displays connected.** On the 3440×1440 external display it is centered, but on the 1920×1200 internal display the Omarchy logo and password field are shifted/clipped beyond the left edge. Both outputs use 1.25 scaling in the normal Hyprland session.

2. **The greeter does not use the configured keyboard layouts.** The normal session starts with US Colemak, also supports Russian, shows the active layout in the topbar, and switches with `Ctrl+Space` or a click on that indicator. At the boot greeter, the password field instead behaves as US QWERTY, with no visible layout indicator and no way to switch layouts. This can make a correctly remembered password appear wrong.

3. **The password field has no reveal control.** An eye button that reveals the password only while pressed would make layout-related input problems easier to diagnose while limiting accidental exposure. It should hide the password again on release or focus loss.

#### Steps to reproduce

1. Boot with both the internal 1920×1200 display and external 3440×1440 display connected.
2. Reach the SDDM login greeter.
3. Observe the centered external output and clipped/offset internal output.
4. Enter a password using Colemak key positions, or press `Ctrl+Space` to switch to Russian.

#### Expected behavior

- The greeter is independently centered and correctly scaled on every connected output.
- The configured Colemak/Russian layouts are available before login, with a visible current-layout indicator and a keyboard/click method to switch them.
- The password field offers a momentary press-and-hold reveal button.

#### Relevant implementation details

The installed files match the current `quattro` branch:

- `default/sddm/hyprland.lua` contains only miscellaneous/animation settings and no monitor or input configuration.
- `default/sddm/omarchy/Main.qml` uses a fixed 640×480 root and a permanently masked `TextInput`; it has no output-aware layout, keyboard-layout indicator, or reveal control.

This overlaps with #10269 for the SDDM keyboard-layout problem. #2884 addressed a similar password-reveal request for the session lock screen, but the boot/login SDDM greeter still lacks that control.

Potential direction: generate/reuse a safe subset of the user's monitor and XKB settings for SDDM, make the QML responsive to each screen's dimensions/scale, and add a momentary password-reveal control.

I have intentionally omitted hostnames, usernames, network details, serial numbers, and photographs of the physical setup.