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/
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/