无需root登陆

打开终端输入如下命令：

gsettings set org.gnome.gedit.preferences.encodings
auto-detected "['GB18030', 'GB2312', 'GBK', 'UTF-8', 'BIG5',
'CURRENT', 'UTF-16']"

gsettings set org.gnome.gedit.preferences.encodings
shown-in-menu "['GB18030', 'GB2312', 'GBK', 'UTF-8', 'BIG5',
'CURRENT', 'UTF-16']"