i cannot tell about edgy (haven't tested it yet) but i've got to manually put my locale at system preferences.
please note that by default the locale option is empty, i must select my language and apply the setting, then restart to get kdm in my locale -- [breezy] KDM not traslated to spanish https://launchpad.net/bugs/24058 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs