Re: [Plplot-general] X protocol errors

[Alan W. I. <ir...@be...>]

I cannot confirm this error on my Debian woody i686 system with KDE-2.2.1
and XFree86-4.1.0.  My system has a Matrox video card, and by default I use
24-bit colour. plrender works fine with no protocol errors whether or not
you specify the -nopixmap option.  I am using the latest cvs version of
plplot, but I am fairly sure there should also be no problem in 5.0.4
because I don't remember any such bug fixes since 5.0.4. What version of
plplot are you using?

If you are using 5.0.4 (or later cvs) I suspect there should be no problem
on the plplot side.  In this case, you might simply have a 24-bit colour
problem with your particular X server. If you are using XFree86, they have a
pretty good track record of fixing bugs, and I would recommend getting the
latest version.  OTOH, if you are using some proprietary X server, you you
may have to stick with 16-bit or something smaller.  (I haven't tried it,
but I would be quite surprised if KDE demanded you use 24-bit colour.)
Another possibility is to try 32-bit colour (which I understand is really
24-bits + 8 unused bits, but 4 bytes is inherently less complicated for an X
driver to use than a 3-byte format.)

Alan

email: ir...@be...
phone: 250-727-2902	FAX: 250-721-7715
snail-mail:
Dr. Alan W. Irwin
Department of Physics and Astronomy,
University of Victoria, P.O. Box 3055,
Victoria, British Columbia, Canada, V8W 3P6
__________________________

Linux-powered astrophysics
__________________________

On Tue, 6 Nov 2001, Simon Pinches TOK wrote:

> Dear all,
>
> Since I've starting using KDE as my window manager on my SUN Ultra
> Sparc running Solaris 8 it has been necessary to run my X server such
> that it defaults to using 24 bit TrueColour.  The downside of this is
> that plrender now produces a whole slew of X protocol errors:
>
> plrender -dev xwin -nopixmap hagis.pl
>
> X protocol error: error=8 request=1 minor=0
> X protocol error: error=3 request=18 minor=0
> X protocol error: error=3 request=18 minor=0
> X protocol error: error=3 request=18 minor=0
> X protocol error: error=3 request=2 minor=0
> X protocol error: error=9 request=55 minor=0
> X protocol error: error=9 request=55 minor=0
> X protocol error: error=9 request=14 minor=0
> X protocol error: error=3 request=2 minor=0
> X protocol error: error=3 request=2 minor=0
> X protocol error: error=3 request=12 minor=0
> X protocol error: error=3 request=8 minor=0
>
> Does anyone know how to cure these?
>
> Note also that if I don't include the -nopixmap option then I also get
> the error message:
>
> Error in XCreatePixmap: BadDrawable (invalid Pixmap or Window parameter).
>
> Many thanks in advance for any help anyone can offer me,
> --
> Simon Pinches
>
> -----------------------------------------------------------------------
> Dr. S. D. Pinches                 Max-Planck-Institut fuer Plasmaphysik
> Tel: +49 89 3299-1329		  Boltzmannstrasse 2
> Fax: +49 89 3299-2580		  D-85748 Garching-bei-Muenchen
> Email: Sim...@ip...   Germany
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