Thanks for following up, closing the bug.
** Changed in: meta-gnome2 (Ubuntu)
Sourcepackagename: meta-gnome2 => control-center
Importance: Undecided => Low
Assignee: (unassigned) => Ubuntu Desktop Bugs
Status: Unconfirmed => Rejected
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Icelandic keys do not work.
https://launchpad.net/bugs/68893