Still a problem in 10.10.
Seems to be the same as Gnome bug
https://bugzilla.gnome.org/show_bug.cgi?id=559816
** Bug watch added: GNOME Bug Tracker #559816
https://bugzilla.gnome.org/show_bug.cgi?id=559816
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Desktop Bugs,
I experience this daily -- which means exactly once per day: Every morning when
I arrive, the keyboard repeat rate has been reset. I set it again by opening
System > Preferences > Keyboard, sliding the "Repeat Keys"/"Speed" slider a
little and back again and closing.
I have tried using the "kdbr