gsettings set org.gnome.gedit.preferences.encodings candidate-encodings "[‘GB18030‘, ‘UTF-8‘, ‘CURRENT‘, ‘ISO-8859-15‘, ‘UTF-16‘]"
直接在终端输入上面的代码就行了
转自: https://blog.csdn.net/qq_32074689/article/details/89685123
原文：https://www.cnblogs.com/zdj8023/p/10909133.html