Some rasterized symbols in math equations with mnsymbol package

I have compiled a document with formulas using Lualatex or Xelatex, and encountered a following issue: some symbols in math equations (like parentheses, root sign, integral sign) are rasterized in the .pdf document (see image below). I can not say that it is badly affects a printed version, but still makes a wrong impression, if you zoom on the document.

The sample code is also provided:

\documentclass[unicode, 10pt, a4paper, twoside]{extreport}

\usepackage[english]{babel}
\usepackage{amsmath}

%\usepackage{amsfonts}
%\usepackage{amssymb}
\usepackage[no-math]{fontspec}
\usepackage{MnSymbol}
\setmainfont[Ligatures={TeX}]{Times}
\begin{document}
$$\nabla \times \vec{H}=-i\omega \varepsilon_0 \varepsilon \vec{E}.$$
$$\nabla \times \vec{H} =\left( \begin{matrix} -\frac{\partial {H}_y}{\partial z} \\ 0 \\ \frac{\partial {H}_y}{\partial z} \end{matrix} \right)$$
\end{document}


After compiling the sample code, zoom and look carefully at cross-product sign ("x"), big parentetheses, vector signs, nabla operator (flipped triangle).

After tests I realized that the problem comes from mnsymbol package.

Did someone manage to fix it?

I am using MiKTeX 2.9, under Windows 7.

.

• Welcome to TeX.SX! Can you please add an example of code producing that output and also some details about your TeX distribution? – egreg Jan 31 '17 at 16:55
• Are you under MiKTeX? – Bernard Jan 31 '17 at 16:59
• @SvyatoslavKharitonov -- you can add the information to your question, where it can be nicely formatted. (you can always edit your own questions.) – barbara beeton Jan 31 '17 at 18:49
• @barbarabeeton -- Thank you very much :) – Svyatoslav Kharitonov Jan 31 '17 at 19:07
• Does it work (with lualatex) if you add \usepackage{luatex85} \pdfmapfile{=MnSymbol.map}? If yes then your map-files are probably not up-to-date. Run on a command line updmap. – Ulrike Fischer Feb 1 '17 at 16:58