ibus recovery from "no input window " error

fedora11預設安裝文字輸入系統為ibus,
於繁體中文語言登入時,ibus預設有注音及拼音兩者可正常使用,
但若用[系統/管理/新增/移除軟體]添加倉頡等輸入法,
則安裝好後,所有輸入法都會消失,只顯示"no input window"訊息.

原因可能是安裝倉頡時連帶更新的ibus-1.2有bug,
還原ibus-1.1舊設定法為
# rpm -qa | grep ibus- (先看目前裝了那些ibus套件)
# ln -s /media/Fedora\ 11\ i386\ DVD/Packages/* /var/cache/yum/fedora/packages/
(將安裝光碟套件作成捷徑,放入yum cache套件目錄中,省去再從網路抓)
# yum downgrade ibus-libs (讓yum自動檢查移除ibus-1.2相關套件,並退回ibus-libs 1.1)
Running Transaction
Installing : ibus-libs-1.1.0.20090423-1.fc11.i586 1/12
Erasing : ibus-1.2.0.20090927-1.fc11.i586 2/12
Erasing : ibus-gtk-1.2.0.20090927-1.fc11.i586 3/12
Erasing : ibus-chewing-1.2.0.20091002-1.fc11.i586 4/12
Cleanup : ibus-libs-1.2.0.20090927-1.fc11.i586 5/12
Erasing : ibus-rawcode-1.2.0.20090703-1.fc11.i586 6/12
Erasing : ibus-m17n-1.2.0.20090617-2.fc11.i586 7/12
Erasing : ibus-table-cangjie-1.2.0.20090717-2.fc11.noarch 8/12
Erasing : ibus-hangul-1.2.0.20090617-2.fc11.i586 9/12
Erasing : ibus-table-1.2.0.20091014-2.fc11.noarch 10/12
Erasing : ibus-anthy-1.1.0.20090402-1.fc11.i586 11/12
Erasing : ibus-pinyin-1.1.0.20090303-1.fc11.noarch 12/12
# yum localinstall ibus-1.1.0.20090423-1.fc11.i586.rpm
# yum localinstall ibus-chewing-1.0.10.20090523-2.fc11.i586.rpm
# yum localinstall ibus-pinyin-1.1.0.20090303-1.fc11.noarch.rpm
# yum localinstall ibus-gtk-1.1.0.20090423-1.fc11.i586.rpm
然後[系統/關機/重新啟動]
帳號登入後,再按[Ctrl-space]啟動,按[Alt+Left_SHIFT]切換,
就可看到原來的拼音及注音語言輸入列.

當然,添加的倉頡等輸入法也都跟著消失.
解決法大概只有
1.安裝依存於舊版ibus-1.1之倉頡版本.
2.乾脆不用ibus而改用原來另外一種輸入法scim.
(yum install scim-python-xingma-cangjie.i586)