Control depth level of table of contents with org-mode and beamer

Question

I have the following in my org-mode file that I am exporting to beamer on the basis of this simple template:

* Introduction
* More
** etc
* Still more
** Some a
** Some b
** Some c

However, my TOC only renders:

More
Still more

It neither renders the ** levels, nor the introduction, oddly.

I'm sure this setting exists, but I don't understand how to ask the TOC to render all ** levels. What setting is controlling the level of TOC depth?

Answer 1

This seems to be a Beamer-level issue, suggesting an Org Mode solution like so:

#+OPTIONS: H:1 num:t toc:nil \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+BEAMER_FRAME_TITLE: 1
#+BEAMER_FRAME_LEVEL: 1
#+PROPERTY: header-args :exports both
#+OPTIONS: H:1
#+LaTeX_HEADER: \input{list-of-frames.tex}

* Outline
:PROPERTIES:
:BEAMER_env: ignoreheading
:END:
\addtocounter{framenumber}{-1}
\begin{minipage}[c][\textheight][c]{\linewidth}
\listofframes
\end{minipage}
* Main content
Hello Beamer!

where the input file has these contents:

\makeatletter
\newcommand\listofframes{\@starttoc{lbf}}
\makeatother

\addtobeamertemplate{frametitle}{}{%
  \addcontentsline{lbf}{section}{\protect\makebox[2em][l]{%
    \protect\usebeamercolor[fg]{structure}\insertframenumber\hfill}%
  \insertframetitle\par}%
}

Answer 2

This is related to the number of levels exported as headlines, which is controlled by org-export-headline-levels. Which value does this variable have?

The template you pointed to includes #+OPTIONS: H:3, are you sure you didn't alter that value?