Nick Dokos <ndo...@gmail.com> writes: Thanks for the tips. It is possible minted is the culprit. I will give that a try, and the other ideas too. I am sure it is using dvipng, and that it works. It will be a nice adventure in more sophisticated debugging ;)
> John Kitchin <jkitc...@andrew.cmu.edu> writes: > >> Hi All, >> >> I am using org-mode in a course this fall with 60 students. All of them >> are using org-mode from elpa. For about 10 of them, they are unable to >> toggle the latex-overlays; instead of getting the equations, they get >> empty gray boxes with an error that the png file was not created. Oddly >> enough, they can export to PDF just fine. I have also checked that they >> have LaTeX (TeXLive) installed, and it appears it is. I am able to >> convert tex files to dvi, and then use dvipng to make a png image. But >> for some reason, the toggle-latex-overlay function does not work for >> them. >> >> I am at a loss to figure out what the issue is. These are Windows >> laptops that were preconfigured by the department. Almost all of them >> work fine, except for this small number I cannot figure out. >> >> Any ideas? Thanks, > > I would edebug-defun the function org-create-formula-image and step > through it to make sure that it goes the way you want (are you sure you > are using the dvipng method on these machines? maybe you are using the > imagemagick method but the program has not been installed? Check the > value of org-latex-create-formula-image-program). > > While you are stepping you can also check the variables in the function > and see e.g. what the output file name is. > > If that goes OK, then I would edebug-defun > org-create-formula-image-with-dvipng next and check the latex input file > it produces. Make sure that things like minted which require > --shell-escape are *not* included in that input file: it's processed by > a hard-wired call to latex (without --shell-escape) , so minted will > cause a failure. If that is the case, check org-latex-packages-alist and > make sure that minted's snippet-flag is nil. > > HTH, > Nick > > > -- ----------------------------------- John Kitchin Professor Doherty Hall A207F Department of Chemical Engineering Carnegie Mellon University Pittsburgh, PA 15213 412-268-7803 http://kitchingroup.cheme.cmu.edu