Beamer with ignorenonframetext ignores \maketitle command too. Why?

Question

I am trying to follow workflow from BEAMER manual (ref. 21.2.2). I want to use the same TeX code to produce both presentation and article. So, I have created three files as advised: main.tex, main.beamer.tex, main.article.tex. I am able to compile article but I fail to do a correct presentation.

LaTeX code \maketitle just simply doesn't work in main.beamer.tex. Have a look at the code: main.tex

\usepackage[T1,T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[russian]{babel}
\usepackage{graphics}

\usetheme{Warsaw}
\setbeamercovered{transparent}

\begin{document}

\title[Свободные ГИС]{Свободные ГИС}
\subtitle{опыт применения}
\author[Владимир Наумов]{Владимир Наумов}
\institute{Консалтинговый центр}
\date{\today}

% [1] Первый титульный слайд
\begin{frame}
\maketitle
\end{frame}

%\beamerdefaultoverlayspecification{<+->}

% [2] Слайд с содержанием доклада (актуально если доклад больше 10-15 минут)
\begin{frame}
\frametitle{О чём этот доклад}
\tableofcontents
\end{frame}
\end{document}
Оценка воздействия на окружающую среду (ОВОС) - выявление, анализ и учет прямых, косвенных и иных последствий воздействия на окружающую среду планируемой хозяйственной и иной деятельности в целях принятия решения о возможности или невозможности ее осуществления.

main.beamer.tex

%\documentclass{beamer}
\documentclass[ignorenonframetext]{beamer}
%\beamertemplatenavigationsymbolsempty
\input{main.tex}

When I run pdflatex with edited main.beamer.tex (documentclass without ignorenonframetext option) it works well.

The option ignorenonframetext should ignore only text outside frames, as far as I know. But in my case it also ignores the text intended for the title frame.

What is the reason that beamer (with ignorenonframetext option) suppresses the text usually made with \maketitle command?

Answer 1

The reason is that with the option, beamer ignores everything after \begin{document} that is not inside a frame.

Put \begin{document} after the declarations of \title, \author and so on; this works also in all standard classes.

\usepackage[T1,T2A]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[russian]{babel}
\usepackage{graphics}

\usetheme{Warsaw}
\setbeamercovered{transparent}

\title[Свободные ГИС]{Свободные ГИС}
\subtitle{опыт применения}
\author[Владимир Наумов]{Владимир Наумов}
\institute{Консалтинговый центр}
\date{\today}

\begin{document}

Answer 2

\maketitle without a \begin{frame}...\end{frame} is expanded to

\begin{frame}
\titlepage
\end{frame}

Therefore, writing the above explicitly keeps the titlepage when ignorenonframetext is set.

Answer 3

This has been fixed in commit https://github.com/josephwright/beamer/commit/226e0f747675dda03c2c192dd8fb97d269f97204 , which should be included in beamer v3.72 or later.

Beamer now recognises \maketitle, \title, \author, \institute and \date in combination with the ignorenonframetext option (but it is still better to have \title etc. before \begin{document} so it can be used to generate proper pdf meta data).