As soon as I use the package mathdesign the commands \textbf and \textsc won't work for Sans Serif and Typewriter fonts. My MWE looks as follows:
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[ngerman]{babel}
\renewcommand{\rmdefault}{ugm} % URW Garamond
\renewcommand{\sfdefault}{uop} % URW Classico (Optima)
\usepackage{luximono}
\usepackage[garamond]{mathdesign}
\begin{document}
\noindent
\normalfont RM-Family: Standard, emph, textbf, textit, textsl, texttt, textsc\\
\rmfamily Text, \emph{Text}, \textbf{Text}, \textit{Text}, \textsl{Text}, \texttt{Text}, "`Not available"'\\
\noindent
\normalfont SF-Family: Standard, emph, textbf, textit, textsl, texttt, textsc\\
\sffamily Text, \emph{Text}, \textbf{Text}, \textit{Text}, \textsl{Text}, \texttt{Text}, \textsc{Text}\\
\noindent
\normalfont TT-Family: Standard, emph, textbf, textit, textsl, texttt, textsc\\
\ttfamily Text, \emph{Text}, \textbf{Text}, \textit{Text}, \textsl{Text}, \texttt{Text}, "`Not available"'
\end{document}
It leads to 3 Warnings which are all similar to this one:
LaTeX Font Warning: Font shape `T1/uop/mb/n' undefined
(Font) using `T1/uop/m/n' instead on input line 19.
My output looks like this (I marked the spots responsible for the warnings):
If I use {\fontseries{b}\selectfont Text} instead of \textbf{Text} and {\fontshape{sc}\selectfont Text} instead of \textsc{Text}, everything works fine, I don't get any warning and my result looks like this:
Not changing the fonts in preamble for Sans Serif family and Typewriter (using the standard defined by the documentclass) won't solve the problem.
Has anyone an idea how to fix this? I'm working in the following environment: Miktex 2.9 (64-bit); mathdesign 2.31; Roman-font: URW Garamond; Sans Serif-font: URW Classico; Typewriter-font: LuxiMono.
Best Answer
I just figured out, that you can solve the problem by using Garamondx as your font instead of Garamond. You can download and install it from CTAN. The MWE looks like this: