First of all you should notice that there are two types of text editors..
- The command line editors such as vim, nano, emacs, etc..
- GUI text editors such as gedit, kate, ...
The default text editor when using the GUI is not the same as the command line text editors so when you are opening a file using GUI you probably are using the GUI text editors which is gedit by default. While when using the command line so you are using the command line text editors.
To know that is the default command line text editor in your system you can try one of the following methods:
First Method:
sudo update-alternatives --config editor
This command show you the text editors. The one you are using has the * in front
Selection Path Priority Status
------------------------------------------------------------
* 0 /bin/nano 40 auto mode
1 /bin/ed -100 manual mode
2 /bin/nano 40 manual mode
3 /usr/bin/vim.basic 30 manual mode
4 /usr/bin/vim.tiny 10 manual mode
Second Method:
$ echo $EDITOR
/usr/bin/nano
to set the default editor you can add the following to your shell configuration ( ~/.bashrc):
export VISUAL="/usr/bin/nano"
export EDITOR="$VISUAL"
Best Answer
Just solved this issue after months of annoyance, by removing the line
run_im ximfrom~/.xinputrcthanks to the people commenting on Ubuntu's issue tracker at https://bugs.launchpad.net/ubuntu/+source/gedit/+bug/1620806I have another line there for disabling the touch screen but that one is fine.
Now why would the setting of the input method handler affect the background redrawing, I can't even imagine.