TeX embedding fails [#1400504]

Getting the following warnings:
Notice: Undefined index: tools in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: verbatim in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: numbering in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Trying to get property of non-object in drutex_linebreak_node2html_postprocess() (line 49 of /var/www/drupal/sites/all/modules/drutex/drutex_linebreak.inc).
Notice: Undefined index: tools in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: verbatim in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: numbering in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Use of undefined constant filter - assumed 'filter' in preg_replace() (line 1 of /var/www/drupal/sites/all/modules/drutex/drutex.module(363) : regexp code).
Notice: Trying to get property of non-object in drutex_linebreak_node2html_postprocess() (line 49 of /var/www/drupal/sites/all/modules/drutex/drutex_linebreak.inc).
Notice: Undefined index: tools in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: verbatim in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).
Notice: Undefined index: numbering in drutex_submodule_is_active() (line 635 of /var/www/drupal/sites/all/modules/drutex/drutex.module).

I have the following in the textbox:

The temporary directory is writable.
The image directory is writable.
Executing "latex" was successful: pdfTeX using libpoppler 3.141592-1.40.3-2.2 (Web2C 7.5.6)
Executing "dvipng" was successful: This is dvipng 1.14 Copyright 2002-2010 Jan-Ake Larsson
Executing "convert" (ImageMagick) was successful: Version: ImageMagick 6.7.0-10 2011-11-03 Q16 http://www.imagemagick.org

Any help would be appreciated.

Regards,

Paul

Comments

Comment #1

oz_an CreditAttribution: oz_an commented 19 January 2012 at 23:43

Check the debugging mode checkbox not to delete temporary folder and files.
You should check the /tmp folder and look for drutex folders. Do you see .dvi and .tex files in it ?
If so, I got it working by writing absolute path to image directory e.g(/var/www/mysite/sites/default/files/tex) and leave the image url relative as it is(files/tex). Also make sure the dpi option field has some figure in it. For some reason the field is empty instead of default value of 107. Put some figure there.