一，在ubuntu中安装中文输入法，在dash home中搜索ibus
Keyboard Input Methods->Input Method->Select an input method->Chinese->Pinyin->Add
二，在Ubuntu英语环境下开机自动启动ibus输入法:
System Settings->Language Support->Keyboard input method system = ibus
三，ibus简繁体中文切换:
Ctrl+Shift+F