是编码问题引起的问题:
Linux下默认的编码是UTF-8，而Windows下默认的编码是GB2312/GBK。执行如下第一条语句即可
gsettings set org.gnome.gedit.preferences.encodings auto-detected "['UTF-8','GB18030','GB2312','GBK','BIG5','CURRENT','UTF-16']"
gsettings set org.gnome.gedit.preferences.encodings shown-in-menu "['GB18030', 'GB2312', 'GBK', 'UTF-8', 'BIG5', 'CURRENT', 'UTF-16']"