luks keymap wrong

I get the wrong keymap when I try to unlock luks.
My vconsole.conf says:

KEYMAP=no
FONT=
FONT_MAP=

I added lang=nb_NO and keytable=no to the linux line in /etc/default/grub and did a update-grub, but it did not make a difference.
It's annoying as nothing else, because unlocking takes forever.

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