Emacs Italic Org-mode

Question

I'm having troubles with the fonts. I think emacs is not displaying the italic font. I notice this mainly when I'm using org-mode, because the italics characters are not appearing.

As you can see in the image above, the second line should appear in italic, and I don't know why it's not doing it. I'm quite sure it was working at some point before. I was playing around with the font customization, but I didn't succeed.

Any Ideas?

Answer 1

@choroba was totally right about the font. I just changed it.

(add-to-list 'default-frame-alist
                       '(font . "DejaVu Sans Mono-11"))

As a note, you can play around with the font with S-left_click