the "org-preview-latex-fragment" command in emacs org-mode

5here is a command named org-preview-latex-fragment in org-mode. its default binding key is C-c C-x C-l. In the org manual, it says this command could preview a latex fragment inline. but after using it, nothing is produced but blank frames (I can't upload images, sorry).

What happened? I'm using emacs23.1 on Ubuntu10.10, the org-mode version is 6.21b, and I've installed dvipn开发者_开发知识库g version 1.13-1.

I tried trace the code, but got lost. How can I fix this?

The easiest way to debug is to try to compile the temporary file created to create the fragment. It is usually located in /tmp and contains orgtex in the filename. You can find the exact name in Emacs's *Messages* buffer.

I resolve the problem by changing the program to convert latex fragment from dvipng to imagemagik. I guess something is missing on my computer.

\M-x customize-variable RET org-latex-create-formula-image-program \RET

Update:

you can event increase the preview size by doing

\M-x customize-variable RET Org Format Latex Options RET

Update 2

I had some problem with imagemagick Have a look at the and switch back to dvipng after following the instruction in the doc. So both work correclty.