[Info-vax] bizarre problem displaying JPEG files with CSWB

[Phillip Helbig---undress to reply]

In article <4e5186d3$0$2234$c3e8da3$76a7c58f at news.astraweb.com>, JF
Mezei <jfmezei.spamnot at vaxination.ca> writes: 

> My suspicion is that the display lacks a certain extention and  Mozilla
> will then send the image as a large uncompessed bitmap which overwhelms
> the display.

What do you mean by display?  Graphics card?  Screen?  The card is an 
Elsa Gloria Synergy, IIRC, and the screen is a TFT.  Again, more modern 
than on the systems where it does work.
 
> I would check what extentions are enabled on that display.
> 
> Run the utility xdpyinfo on the faulty display and on a display where
> the same operation works and compare the results.

%DCL-W-IVVERB, unrecognized command verb - check validity and spelling
 \XDPYINFO\

Where do I get it?

> If you have a http://www.chocolate.com/mybigfile.jpg  does it work ?

I'll give it a try later.

Note that there is a size between 3000 and 5000 blocks where it just 
stops working.

> With firefox, when opening a big image, it scales the image to fit the
> screen, 

Not with CSWB (at least the version I have).

> and the cursor is a magnifying glass where, if you click on the
> image, it then gets to its full size.

I would like to have that in CSWB.

> I think it should work the same with a file:// URL.

In general, yes.
 
> With an image inside HTML, the browser will first scale the image to fit
> inside teh space allocated to it by the HTML, so it will send a smaller
> bitmap to the X display.

Right.  However, it still loads the entire data.