[Tex/LaTex] headlines with fancyhdr and documentclass scrreprt

fancyhdrheader-footer

I am using documentclass scrrept and fancyheader headlines.

The problem is that on every page where a new chapter starts, here are no headers. Only the page no is shown in the middle of the footer.
But I would like to have the header on each page.

\documentclass[12pt, bibliography=totoc]{scrreprt}

\usepackage{ngerman}
\usepackage[T1]{fontenc}
\usepackage[isolatin]{inputenc}

\usepackage{graphicx}
\usepackage[german]{varioref}
\usepackage{moreverb}

\usepackage{lastpage}
\usepackage{fancyhdr}



\renewcommand{\baselinestretch}{1.5}
\setlength{\oddsidemargin}{0.8cm}
\setlength{\evensidemargin}{0.8cm}
\setlength{\textwidth}{14cm}
\setlength{\textheight}{23cm}
\setlength{\topmargin}{-0.8cm}
\setlength{\parindent}{0pt}

\begin{document}



\pagestyle{fancy}

\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}
\fancyhf{}
\fancyhead[LE,LO]{Thorsten Sohn, 1076041}

\fancyhead[CE,CO]{\thepage\ von \pageref{LastPage}}

Best Answer

You should set your document margins with package geometry or typearea! And also do not set the baselinestretch explicitely, use package setspace:

\documentclass[12pt, twoside]{scrreprt}
\usepackage[ngerman]{babel}
\usepackage[T1]{fontenc}
\usepackage[latin9]{inputenc}
\usepackage{graphicx}
\usepackage[german]{varioref}
\usepackage{moreverb}
\usepackage{lastpage,lipsum}
%----------------------------------------   
\usepackage[total={14cm,23cm},top=0.8cm,includehead]{geometry}
\usepackage{setspace}\onehalfspacing

\usepackage{fancyhdr}
\pagestyle{fancy}
\fancyhf{}
\fancyhead[LE,LO]{Thorsten Sohn, 1076041}
\fancyhead[CE,CO]{\thepage\ von \pageref{LastPage}}
\fancypagestyle{plain}{%
  \fancyhf{}
  \fancyhead[LE,LO]{Thorsten Sohn, 1076041}
  \fancyhead[CE,CO]{\thepage\ von \pageref{LastPage}}
}
%---------------------------------------- 
\renewcommand{\sectionmark}[1]{\markright{\thesection\ #1}}

\begin{document}
\chapter{first}
\lipsum[1-6]
\end{document}