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[Manuel López-Ibáñez <1403454@xxxxxxxxxxxxxxxxxx>]

Work-around in case it were useful to someone else:

$ sudo mv /usr/bin/gs /usr/bin/gs.original
$ sudo cat > /usr/bin/gs <<EOF
#!/bin/sh
##
# Wrapper to work-around bug https://bugs.launchpad.net/ubuntu/+source/inkscape/+bug/1403454
exec /usr/bin/gs.original -dColorConversionStrategy=/LeaveColorUnchanged "$@"
EOF
$ sudo chmod a+x /usr/bin/gs

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https://bugs.launchpad.net/bugs/1403454

Title:
  Latex Formula crashes with Unrecoverable error: stackunderflow in
  .setdistillerparams

Status in inkscape package in Ubuntu:
  New

Bug description:
  Extensions->Render->Latex Formula...

  Enter: $z \in \mathbb{R}^m$
  Apply
  Output:

  GPL Ghostscript 9.10: Set UseCIEColor for UseDeviceIndependentColor to
  work properly.

  Unrecoverable error: stackunderflow in .setdistillerparams

  PostScript/PDF Interpreter finished. Return status 65280 executed
  command : /usr/bin/gs -I/home/manu/.fonts -q -dDELAYBIND
  -dWRITESYSTEMDICT -dNODISPLAY -dNOEPS "/tmp/inkscape-
  Lk7JkT/psinRKL3mZ"

  The interpreter seems to have failed, cannot proceed !

  Traceback (most recent call last):
    File "eqtexsvg.py", line 156, in <module>
      e.affect()
    File "/usr/share/inkscape/extensions/inkex.py", line 215, in affect
      self.effect()
    File "eqtexsvg.py", line 150, in effect
      svg_open(self, svg_file)
    File "eqtexsvg.py", line 81, in svg_open
      doc = inkex.etree.parse(filename)
    File "lxml.etree.pyx", line 3239, in lxml.etree.parse (src/lxml/lxml.etree.c:69955)
    File "parser.pxi", line 1748, in lxml.etree._parseDocument (src/lxml/lxml.etree.c:102066)
    File "parser.pxi", line 1774, in lxml.etree._parseDocumentFromURL (src/lxml/lxml.etree.c:102330)
    File "parser.pxi", line 1678, in lxml.etree._parseDocFromFile (src/lxml/lxml.etree.c:101365)
    File "parser.pxi", line 1110, in lxml.etree._BaseParser._parseDocFromFile (src/lxml/lxml.etree.c:96817)
    File "parser.pxi", line 582, in lxml.etree._ParserContext._handleParseResultDoc (src/lxml/lxml.etree.c:91275)
    File "parser.pxi", line 683, in lxml.etree._handleParseResult (src/lxml/lxml.etree.c:92461)
    File "parser.pxi", line 622, in lxml.etree._raiseParseError (src/lxml/lxml.etree.c:91757)
  lxml.etree.XMLSyntaxError: Document is empty, line 1, column 1

  This is related to bug 1218350, however, adding a wrapper around
  /usr/bin/gs to add -dUseCIEColor still generates the error.

  Following http://bugs.ghostscript.com/show_bug.cgi?id=694066#c4 adding
  -dColorConversionStrategy=/LeaveColorUnchanged instead fixes it but it
  produces some spurious output:

  (CHAR1: )
  (z)
  0
  0
  0
  32
  0
  -mark-
  0
  0
  32
  0
  0
  134
  (CHAR1: )
  (2)
  0
  0
  0
  32
  0
  -mark-
  0
  0
  32
  0
  0
  115
  (CHAR1: )
  (R)
  0
  0
  0
  32
  0
  -mark-
  0
  0
  32
  0
  0
  2465
  4215
  (CHAR1: )
  (m)
  0
  0
  0
  32
  0
  -mark-
  0
  0
  32
  0
  0

  Nonetheless, the rendered formula seems correct.

  This could be a bug in gs, in how pstoedit calls gs, or in how
  inkscape calls pstoedit.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: inkscape 0.48.4-3ubuntu2
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  Uname: Linux 3.13.0-43-generic i686
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: i386
  CurrentDesktop: KDE
  Date: Wed Dec 17 11:21:51 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-10-19 (58 days ago)
  InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release i386 (20140722.2)
  SourcePackage: inkscape
  UpgradeStatus: No upgrade log present (probably fresh install)

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