There's a project (created by me) which tries to work around this limitation of X by providing a daemon-like app intercepting Ctrl+Shift+U and allowing to enter UTF-32 character codes:
https://gitorious.org/ucode/ucode/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/531208 Title: Need way to insert arbitrary unicode characters in Kubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/531208/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs