Recently I found my ubuntu12.04 on the top of the keyboard to display the input method status of small icons often disappear, so the Internet search for a solution. Here is a summary of a children's shoes blog.
Open the terminal, there are many ways, that's not to say
Enter the following command separately
Killall Ibus-daemon This represents the end of the process
ibus-daemon-d This means reboot IBUs
In addition, IBus, English is all called intelligent input Bus, is a multi-language input method framework under the class Uinx operating system. Because it uses a bus-style architecture, it is named Bus. IBUs supports a variety of input methods, such as pinyin input method (including full/simple/double spelling), and support based on the code table input method, such as Wubi, Zheng Code, two pen and Cangjie and other input methods. IBUs is now the default multi-language input method platform for several popular Linux distributions, such as Ubuntu,linux Mint,fedora.
References, thank you very much
Http://www.linuxidc.com/Linux/2013-04/83519.htm
"Notes" Ubuntu12.04 Keyboard icon (Input Method icon) is missing and then re-displayed