Bug#808840: sddm uses US keyboard

[Juris <juris788999344@outlook.com>]

Hi!

Issue is still present on sid:


||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  sddm           0.18.1-1     amd64        modern display manager for X11

With following /etc/default/keyboard contents on sddm greeter I can see 
and choose only "us" layout.

% cat /etc/default/keyboard
# KEYBOARD CONFIGURATION FILE

# Consult the keyboard(5) manual page.

XKBMODEL="pc105"
XKBLAYOUT="us,lv"
XKBVARIANT=",apostrophe"
XKBOPTIONS="ctrl:nocaps,grp:shift_toggle"

BACKSPACE="guess"

% localectl
   System Locale: LANG=en_GB.UTF-8
                  LANGUAGE=en_GB:en
       VC Keymap: us
      X11 Layout: us,lv
       X11 Model: pc105
     X11 Variant: ,apostrophe
     X11 Options: ctrl:nocaps,grp:shift_toggle

Keyboard layouts work as expected when logged into Plasma session.

One interesting detail is that when I run sddm-greeter in test mode from 
signed in session I can see that both layouts are available in keyboard 
layout drop-down.

% sddm-greeter --test-mode


BR, Juris