Input methods for complex characters (CJK, which is shorthand for Chinese,
  Japanese, Korean) and other non-latin character sets have been added. These
  input methods use the SCIM (Smart Common Input Method) platform.
  The environment variables for SCIM support are set in /etc/profile.d/scim.sh
  The requirements for getting SCIM input methods to work in your X session
  are as follows:
  (1) Use a UTF-8 locale. Look in /etc/profile.d/lang.sh for setting your
      language to (for instance) en_US.UTF-8. As a word of warning: maybe you
      should leave root with a non-UTF-8 locale because you don't want root's
      commands to be misinterpreted. You can add the following line to your
      ~/.profile file to enable UTF-8 just for yourself:
        export LANG=en_US.UTF-8
  (2) Make the scim profile scripts executable. These will setup your
      environment correctly for the use of scim with X applications. Run:
        chmod +x /etc/profile.d/scim.*
  (3) Start the scim daemon as soon as your X session starts. The scim daemon
      must be active before any of your X applications. In KDE, you can add a
      shell script to the ~/.kde/Autostart folder that runs the command
      "scim -d". In XFCE you can add "scim -d" to the Autostarted Applications.
      If you boot your computer in runlevel 4 (the graphical XDM/KDM login)
      you can simply add the line "scim -d" to your ~/.xprofile file.
      This gives you a Desktop Environment independent way of starting scim.
  When scim is running, you will see a small keyboard icon in your system tray.
  Right-click it to enter SCIM Setup. In 'Global Setup' select your keyboard
  layout, and you are ready to start entering just about any language
  characters you wish! Press the magical key combo <Control><Space>
  in order to activate or deactivate SCIM input. The SCIM taskbar in the
  desktop's corner allows you to select a language. As you type, SCIM will show
  an overview of applicable character glyphs (if you are inputting complex
  characters like Japanese). 

If you are using the pinentry-gtk2 interface (for entering passphrases with 
  gpg-agent), be aware that there is a bug in the way scim-bridge and the
  pinentry-gtk2 interact.  The result is that keyboard input does not register
  with pinentry-gtk2.  For the time being, either change the /usr/bin/pinentry
  symlink to use the qt or curses frontend, or don't use scim.