The Input Method is default to iBus on Ubuntu 9.10. However, iBus does not provide my Chinese Input Method but SCIM has. Therefore, I need to make SCIM as default instead of iBus.
sudo im-switch -s scim
sudo update-alternatives --config xinput-zh_TW
Then, choose scim by the number and a "
*
" will changed to SCIM from iBus.
That's all! See you.