Bug#549393: Bug#549303: icewm: Resizing jpeg images with display doesn't work

[Anthony Campbell]

On 02 Oct 2009, Eduard Bloch wrote:
> #include <hallo.h>
> * Anthony Campbell [Fri, Oct 02 2009, 10:34:15AM]:
> 
> > I use display from Imagemagic to resize jpeg images. When I do this the
> 
> How? What do you run? What and where is the test data? I have no time
> for puzzles. In a quick test with my own data, I cannot reproduce it.
> 
> > image flickers rapidly and I have to kill the app. This happens on two
> 
> What's "rapidly"? Once per second? 2fps? 10fps?
> 
> > different machines (desktop and laptop). It has started quite recently.
> > I thought it was a problem with Imagemagick but the maintainer for that
> > can't reproduce it and when I use different WMs (aewm, twm) it is not
> > there. It doesn't happen with gif images, including those I convert from
> > the jpeg ones causing the problem.
> > 
> > I can't be sure it is icewm that does this but, as I say, changing the
> > wm makes it go away.
> 
> Maybe you changed something else along with the WM, which triggered the
> problem?
> 
> Regards,
> Eduard.


I don't know what else you want besides what is in the data generated by
reportbug. Both machines are running Sid with no desktop manager. I'm
not trying to set puzzles; it's not a major issue for me because I can
get round the problem by converting jpeg files to gif or by using gimp, 
but I thought it was worth flagging up a bug report about it.

If I fire up "display", load the image, select "view" and then resize to
half size the flicker appears. I attach a sample jpeg file but it seems
to happen with all of them.

The flicker frequency is at least 10/sec. I've been using icewm for
years (literally) and haven't seen this before.

As I said in my original post, it may well not be icewm per se that
causes the problem; there have been various issues with X recently, but
I have no means of knowing if it is that. But since it happens with
icewm and not other WMs I assume it is connected in some way. I tried
running icewm without any config files but the same thing happens.

Anthony



-- 
Anthony Campbell - ac at acampbell.org.uk 
Microsoft-free zone - Using Debian GNU/Linux
http://www.acampbell.org.uk (blog, book reviews, 
and sceptical articles)

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