@VoidMage, actually most of it, but didn't find anything about repeat. But if You have, then please give me a pointer to the actual text.

I found some information on topic "Key repeat not working in Gnome [solved]".
http://forums.gentoo.org/viewtopic-t-744806-highlight-repeat.html

The solution ...

I followed the description of d2_racing and it works almost perfectly.
But I don't have repeat on the two keys <left> and <down>. All other keys does repeat as expected, including the numeric keypad located <left> and <down>.

Anyone having the same problem - and hopefully a solution?