The default Simplified Chinese input method in Ubuntu is ibus-pinyin, and it really sucks!! SunPinyin is much better. It may be not as good as Sogou or Google pinyin, but it is acceptable… SunPinyin is a statistical language model based Chinese input method, which was firstly developed by Sun Beijing Globalization team, and opensource’d to community with opensolaris project, with LGPLv2 and CDDL dual-licenses. Install it using

The default keys for prev/next page are not -/+. To change the settings of sunpinyin, you can run