If you have problems with charset when you’re editing documents on GEdit, you can fix it changing encoding settings on Gnome environment. For it, use this:
[bash]
gsettings set org.gnome.gedit.preferences.encodings auto-detected “[‘UTF-8’, ‘WINDOWS-1251’, ‘CURRENT’, ‘ISO-8859-1’]”[/bash]
However, you need to check your system locale, on Debian based you can use dpkg-reconfigure for it:
[bash]sudo dpkg-reconfigure locales [/bash]