The rebuild is still not perfect: I rebuilded from source as indicated above, and put higer version number I have removed gnuplot, and all unneeded plplot stuff, to keep only what i need
$ dpkg -l | grep plplot|awk '{print $1 "\t" $2 "\t" $3}' ii libplplot9 5.9.2-32-AL1 ii octave-plplot 5.9.2-32-AL1 ii plplot-bin 5.9.2-32-AL1 ii plplot-doc 5.9.2-32-AL1 ii plplot9-driver-cairo 5.9.2-32-AL1 ii plplot9-driver-gd 5.9.2-32-AL1 if i produce an error (not togle_plplot_use before trying to plot) then next invocation will fail: 1/ This is ok : ------------------ octave:1> x=[0, 1, 3, 4, -1]; y = [ -1, 4, 6, -2, 1]; octave:2> toggle_plplot_use Use PLplot: on octave:3> plot(x,y) Requested device xwin not available Plotting Options: < 1> ps PostScript File (monochrome) < 2> psc PostScript File (color) 2/ With an error first, then it fails and i need to retart octave: octave:1> x=[0, 1, 3, 4, -1]; y = [ -1, 4, 6, -2, 1]; octave:2> plot(x,y) sh: gnuplot: not found sh: gnuplot: not found error: you must have gnuplot installed to display graphics; if you have gnuplot installed in a non-standard location, see the 'gnuplot_binary' function octave:3> toggle_plplot_use Use PLplot: on octave:4> plot(x,y) ^C^CPress Control-C again to abort. -- plot does not work with octave 3.2 https://bugs.launchpad.net/bugs/505854 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs