Public bug reported:
GNU Octave, version 3.8.1, Ubuntu 14.04
gnuplot (Version 4.6 patchlevel 4, last modified 2013-10-02, Build System:
Linux x86_64)
OS: Ubuntu 14.04.1 LTS, Release: 14.04
package:
octave: Installed: 3.8.1-1ubuntu1
gnuplot: Installed: 4.6.4-2
sample output:
octave:1> plot(rand(10))
libGL error: failed to load driver: swrast
octave:2>
I am running octave on a vnc4server headless system (a data processing
server, AMD 64-bit CPU) with a freshly installed system. I am using the
XFCE4 desktop environment launched vnc4server. Whenever I try to create
a plot (or directly write the plot data into files with the print()
function) I am getting this error message. I can, however, run gnuplot
alone, I can see the plot window and I can generate plots.
Octave 3.8 also "prints" the plot to a graphics file, e.g. in SVG
format. But this file is completely white. Likewise, the plot window is
displayed, but it remains white.
I have just migrated from an ubuntu 12.04 platform to 14.04, and have
kept the "old" computer (same type, 64-bit CPU). There, octave 3.2
produces the expected plots.
1) Is there another way to generate plots in octave into files (e.g.
svg) that are not affected by this (seemingly graphics driver) problem?
2) How could this be fixed for headless systems running a vnc server
without using the physical graphics card output?
Did anyone else notice this?
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: octave 3.8.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CurrentDesktop: XFCE
Date: Wed Mar 4 16:55:47 2015
InstallationDate: Installed on 2009-03-11 (2184 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2)
SourcePackage: octave
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: octave (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1428196
Title:
octave does not plot anything
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