display submitted variable - where does it originate The following code appears in node.tpl.php and file_entity.tpl.php, but strangely enough not in comment.tpl.php.

  &lt;?php if ($display_submitted): ?&gt;
    &lt;div class="submitted"&gt;
      &lt;?php print $submitted; ?&gt;
    &lt;/div&gt;
  &lt;?php endif; ?&gt;


In node.tpl.php $display_submitted it true, but in file_entity.tpl.php it is false. I am using Zen 5.x theme. 

Why is it different? I would assume it is some theme setting but I can't find it.

Where is this variable initialized? And do I just set it to true in preprocess_file_entity?
For completeness, I have added a patch to File Admin's issue queue. Patch adds the vertical tab to file entity's GUI edit page and sets the variable: 'file_submitted_' . $file_type, which is read by template_preprocess_file_entity in file_entity.module.