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Re: Q:IDL X windows error [message #12655 is a reply to message #12652] Mon, 10 August 1998 00:00 Go to previous message
Kevin Ivory is currently offline  Kevin Ivory
Messages: 71
Registered: January 1997
Member
Rick Towler wrote:
> I am running IDL v5.1 on HP-UX 10.2 at a screen depth of 8bpp and am
> accessing it from a RedHat linux 5.1 box running at a screen depth of
> 16bpp.
>
> From within IDL I can not output anything do device "x" without
> receiving the following error:
>
> % Unsupported X Windows visual (class: StaticGray, depth: 0).
> Substituting default (class: <UndefinedVisual>, Depth: 0).
> % Execution halted at: $MAIN$
>
> Does anyone have any experience with this error? I am guessing it stems
> from the fact that locally I am at 16bpp while the remote machine can
> only generate 8bpp. The easy answer would be to operate at 8bpp locally
> but this is unacceptable since it will generate problems with other

I think IDL does not support 16 bpp in any Unix version, so you will
definitely have to change to 8 bpp (with all color flashing problems
etc.) or to 24 bpp. With most graphics cards & resolutions, if you can
use 16 bpp, you can use 24 bpp as well. I use 16 bpp per default
(because my 24 bpp X server has many bugs) - and when I need IDL graphics,
I open another virtual terminal with 24 bpp with a command like
(this is for Linux):
X -query localhost -bpp 24 :1

IDL not supporting 16 bpp is *almost* a reason to dump it.

Kevin
--
Kevin Ivory Tel: +49 5556 979 434
Max-Planck-Institut fuer Aeronomie Fax: +49 5556 979 240
Max-Planck-Str. 2 mailto:Kevin.Ivory@linmpi.mpg.de
D-37191 Katlenburg-Lindau, GERMANY http://www.gwdg.de/~kivory2/
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