KEYMAP in /etc/vconsole.conf should no longer be written directly by YaST.
Instead please run 

  1) localectl set-x11-keymap us (*)
  2) localectl set-keymap <KEYMAP> [OPTIONS]

I just removed the script, which tried to set these keymaps according to the
value in /etc/vconsole.conf during displaymanger startup. Unfortunately this 
didn't work reliably, if this file is written not by localectl itself. LOL. See
bnc#1023211 for more funny details.

(*) 1) is currently needed due to a different bug. X11 keymap is not written
       when using set-keymap option, if there is no X11 keymap snippet yet.
       I'll open an additional bug for this.