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Re: Execution halted
David Fanning wrote:
>
> Martin Skou Andersen (skou@fys.ku.dk) writes:
>
> > I get the following messages when i tries to plot some data...
> > ----------------------------
> > IDL> plot, x, y
> > % Unsupported X Windows visual (class: StaticGray, depth: 0).
> > Substituting default (class: <UndefinedVisual>, Depth: 0).
> > % Execution halted at: $MAIN$ 105 /xxx/xxx/xxx.pro
> > ----------------------------
> >
> > Im running IDL version 5.2 (linux x86), on RedHat 7.0 with Gnome.
> > What is wrong?
> > Please help... :o)
>
> You need to run your XServer in either 8-bit or 24-bit
> (what I recommend) mode. Not the 16-bit mode you are
> probably in now. :-)
>
> If any of you Linux-types want to write the definitive
> answer to this question, I'll make every effort to save it
> in a place where I can find it. (I'll even add it to
> my web page, so we don't have to answer this question
> any more. :-)
>
David,
this is the definitive answer ;-)
Although: I successfully got IDL to plot something on my laptop which
is running 16-bit mode by tricking it to believe it has 24-bit. I have
no idea if this is driver specific (ATI card) or a general XFree4
feature. All I did was to set the default depth in XF86Config to 24.
While the laptop then starts in 16 bit mode, it apparently adds a
24-bit mode to its `xdpyinfo`, and IDL seems to use that information
to determine if it can run. CAUTION: There are some side effects:
While !D.N_Colors reports 247,000 or some other high number,
!D.Table_Size is limited to, in my case even 64(!).
Oh... yes... and don't forget decomposed=0 ...
Cheers,
Martin
--
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