Octave command window showing unreadable text [duplicate]

When I start Octave, on the command window I see this:

Octave command window

However, after I run some commands, I can see they are in history and they do execute. I can see the text if I copy-paste it somewhere.

How can I make the command window text visible?


Solution 1:

I fixed it by changing the font from Courier to another type. In my case, I changed it to Andale Mono. I have Octave version 4.2.2, and my Ubuntu is 16.04 LTS. It is EDIT->Preferences->Terminal->Font.

This is the fixed command window. enter image description here

This is the past bugged command window. enter image description here