[vtkusers] Mangled Mesa off-screen printing does not work

[Zdzislaw Meglicki]

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It seems that Mangled Mesa off-screen printing does not work on my
system.

Here are the details:

   OS: Linux 2.4.29-rc2 i686, i386 GNU/Linux
   Mesa: Mesa-6.2
   VTK: vtk4.4
   tcl: tcl8.3.3
   tk: tk8.3.3
   Python: Python-2.3.3

Symptoms:

   $ cd vtk4.4-src/VTK/Examples/MangledMesa/Tcl
   $ wish OffScreenPrinting.tcl

This brings up the picture of a cone on my display with two
push-buttons: "print" and "exit". On pressing "print" a file is
generated, "MesaPrintout.png". The file contains an all-black page
with no image on it. No error messages are flagged at any stage.

Has this been reported before? What may be the problem?

- -- 
 Zdzislaw (Gustav) Meglicki, Office of the Vice President for Information
 Technology, Indiana University, 601 E. Kirkwood Ave., Room 116, 
 Bloomington, IN 47405-1223, USA, http://beige.ucs.indiana.edu/gustav,
 ph: 812-856-5597 (o), 812-345-3284 (m), 812-856-3147 (fax)
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