Why are letters overlapping in the terminal?
Solution 1:
Turns out the ttf-ubuntu-font-family package somehow didn't get installed. Immediately after installing that package, the terminal font switched to the Ubuntu Monospace font and everything was readable again.
Solution 2:
Open your terminal Go to Edit-->Profile Preferences and in general tab check "Use System fixed width font"
Solution 3:
I have seen this kind of problem in my friend's gnome terminal.. just go to edit --> profiles and change the settings of the font of your terminal.. it should solve your problem.. :)
Solution 4:
Had the same problem. This may be related. Bug #1166125
Removing package pango-graphite fixed the problem for me:
sudo apt-get purge pango-graphite
Solution 5:
sudo apt-get install gnome-tweak-tool
goto tweak tool
goto fonts>monospace> select ubuntu mono regular 13pts