我正在为我的学生写一份文件（最后是 MWE 和乳胶输出），其中有一章的标题很长：
\chapter{Inadequacy of the classical physics, and the birth of a new theory for microscopic phenomena}
这个标题似乎分为两行，既在目录中，也在章节开始的页面中，但我对这种分割并不反感，对我来说这样就足够了。（我发现有很多问题，不同意这种做法，但这不是我的问题。）
进入包hyperref。它起作用了，也就是说，它使目录中的标题可点击，点击后会转到该章节，但拒绝在目录中分割行：它超出了纸张的左边缘，效果很糟糕。hyperref 的文档提到了选项 [breaklinks=true]，因此：
\usepackage[breaklinks=true]{hyperref}
但同时告诉我，由于“PDF 驱动程序”，将链接拆分成两行是不行的，并建议不要使用该选项，因为链接将被“置换”。而且确实置换了，而且置换得非常厉害，因为（打开该选项后）章节标题确实被拆分了：但单击任何一行，实际上单击整个页面都没有任何效果。
有人知道如何解决我的问题吗（除了显而易见的问题，即缩短章节标题）？
我提到（在许多帖子中似乎都大肆宣扬这一点）我在 Xubuntu 上使用命令“latex”，但无论如何，这似乎为我调用了“pdflatex”。或者可能是“pdfTeX”？
latex -interaction=batchmode Ift.tex
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/Debian) (preloaded format=latex)
restricted \write18 enabled.
entering extended mode
感谢大家的帮助！
\documentclass[12pt]{book}
\usepackage[small]{titlesec}
% Make internal hyperlinks
\usepackage[breaklinks=true]{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=magenta,
urlcolor=cyan,
}
\urlstyle{same}
%
% Set the beginning of a LaTeX document
\begin{document}
% Set to use the "plain" pagestyle
\pagestyle{plain}
\tableofcontents
\clearpage
\chapter{Inadequacy of the classical physics, and the birth of a new theory for microscopic phenomena}
\label{ch:Intro}
% Set the ending of a LaTeX document
\end{document}
LaTeX2e <2017-04-15>
Babel <3.18> and hyphenation patterns for 22 language(s) loaded.
(/usr/share/texlive/texmf-dist/tex/latex/base/book.cls
Document Class: book 2014/09/29 v1.4h Standard LaTeX document class
(/usr/share/texlive/texmf-dist/tex/latex/base/bk12.clo))
(/usr/share/texlive/texmf-dist/tex/latex/titlesec/titlesec.sty)
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/hyperref.sty
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/hobsub-hyperref.sty
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/hobsub-generic.sty))
(/usr/share/texlive/texmf-dist/tex/latex/graphics/keyval.sty)
(/usr/share/texlive/texmf-dist/tex/generic/ifxetex/ifxetex.sty)
(/usr/share/texlive/texmf-dist/tex/latex/oberdiek/auxhook.sty)
(/usr/share/texlive/texmf-dist/tex/latex/oberdiek/kvoptions.sty)
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/pd1enc.def)
(/usr/share/texlive/texmf-dist/tex/latex/latexconfig/hyperref.cfg)
(/usr/share/texlive/texmf-dist/tex/latex/url/url.sty))
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/hdvips.def
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/pdfmark.def
Package hyperref Warning: You have enabled option `breaklinks'.
(hyperref) But driver `hdvips.def' does not suppport this.
(hyperref) Expect trouble with the link areas of broken links.
(/usr/share/texlive/texmf-dist/tex/latex/oberdiek/rerunfilecheck.sty)))
(./Ift.aux) (/usr/share/texlive/texmf-dist/tex/latex/graphics/color.sty
(/usr/share/texlive/texmf-dist/tex/latex/graphics-cfg/color.cfg)
(/usr/share/texlive/texmf-dist/tex/latex/graphics-def/dvips.def)
(/usr/share/texlive/texmf-dist/tex/latex/graphics/dvipsnam.def))
(/usr/share/texlive/texmf-dist/tex/latex/hyperref/nameref.sty
(/usr/share/texlive/texmf-dist/tex/generic/oberdiek/gettitlestring.sty))
(./Ift.out) (./Ift.out) (./Ift.toc) [1] [2]
Chapter 1.
Overfull \hbox (1.70032pt too wide) in paragraph at lines 23--23
|\OT1/cmr/bx/n/20.74 Inadequacy of the clas-si-cal physics, and
[3] (./Ift.aux) )
(see the transcript file for additional information)
Output written on Ift.dvi (3 pages, 4476 bytes).
Transcript written on Ift.log.