Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have two versions of emacs available to me on a locked workstation:

$ /usr/local/bin/emacs --version
GNU Emacs 22.3.1

$ /usr/bin/emacs --version
GNU Emacs 21.4.1

In both cases, my terminal type is xterm when I run either version of emacs.

When I run the v21 version of emacs, I get syntax coloring for Perl, HTML, and other modes.

When I run the v22 version, I do not get syntax coloring.

I would like to migrate from the v21 version because the combination of v21 emacs, GNOME Terminal and GNU Screen is eating Ctrl-arrow key chords, which prevents me from moving quickly between words. (OS X Terminal and GNU Screen do not have this issue.) The v22 version allows use of Ctrl-arrow key combinations with GNOME Terminal and GNU Screen.

How do I fix the v22 version (or ask my sys admin to fix) so that it once again highlights syntax and allows me to use Ctrl-arrow key combinations?

share|improve this question
have you managed to resolve this? I'm having a similar problem. – bstpierre Aug 7 '10 at 2:29
up vote 5 down vote accepted

Add this line

(global-font-lock-mode 1)

to your .emacs file.

share|improve this answer
This had no effect, I'm afraid. – Alex Reynolds May 21 '10 at 23:31
Try to activate it manually, with M-x font-lock-mode, making sure you are in some programming language mode (like c-mode) first. – goedson May 22 '10 at 1:03

I was having the same problem, but only with c and c++ modes. Thanks to the hints above from @goedson I tracked it down.

Doing M-x font-lock-mode when in these modes showed me that it was already enabled. (The message I got back when running this was "Font-Lock mode disabled".)

Digging around through help (and my memory), I remembered that you have to apply the colors to the buffer ("fontify"). To test it manually, first make sure font-lock-mode is on and that you're in a programming language mode (e.g. perl, c). Then do font-lock-fontify-buffer. If you get colors, then you'll want to apply the change to your .emacs. Add something like this:

(add-hook 'c-mode-hook
          (function (lambda ()

You'll want to replace c-mode-hook with whatever mode is relevant for you, and you may want to repeat this for other modes. (I've done it for c and c++.)

share|improve this answer

I would try to change my TERM to something like xtermc, or xterm-256 or somehting like that.

Also, does M-x list-colors-display work for you ?

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.