I have just installed octave and it seems I'm missing some parts. I'm using Debian testing with XFCE. I have the following packages installed:
$ dpkg -l | grep octave ii liboctave6:amd64 4.4.1-5 ii octave 4.4.1-5 ii octave-bsltl 1.1.1-2 ii octave-common 4.4.1-5 ii octave-doc 4.4.1-5 ii octave-image 2.10.0-2 On octave, i enter the following commands: x = linspace(0, 2*pi); a = cos(2*x); plot(x, a); Then, a window appears with menus, but the drawing is completely blank. I get some font errors. I don't know if they affect the graph: warning: ft_manager: unable to load font: /usr/share/fonts/opentype/freefont/FreeSans.otf warning: called from axes at line 66 column 10 newplot at line 158 column 10 plot at line 222 column 9 warning: ft_text_renderer: unable to load appropriate font It seems I'm using Qt for graphics but my system seems to have all libqt5* packages installed. I also tried gnuplot graphics and the window was also blank. Am I missing packages? Can I configure octave to use other fonts instead? -- Bruno Schneider