Re: [libreoffice-users] Re: Presentation slide does not show graphics visible in 'Normal'

Hi :)  
You might be suffering from an extremely rare and intermittent bug so it would be great if you 
could post a bug-report about it and let them know what you have tried already that didn't work
https://wiki.documentfoundation.org/BugReport
You might find a few duplicates and 1 might match your case more closely than any of the others.  
if so please try to add to that instead of creating a fresh new thread.  

Most of the time if this bug does ever surface then it seems to happen if you have "Auto-backup" or 
"Auto-save type features on.  if you switch them off the bug vanishes
Tools - Options - Load/Save - General 
and untick options such as "Always create back-up copy".  

I think it's been about a year since we last saw anyone suffering with this bug so it's not an easy 
one to pin down and fix!  Most people using the back-up and auto-saving options are completely fine 
however much they try to set-up things to reproduce the problem.  You might even find that if you 
switch the options off and then next week switch them back on again that you also find it tough to 
lose images.  

Regards from 
Tom :)  




________________________________
 From: Paul D. Mirowsky <p_mirowsky@bentaxna.com>
To: users@global.libreoffice.org 
Sent: Tuesday, 3 September 2013, 21:28
Subject: Re: [libreoffice-users] Re: Presentation slide does not show graphics visible in 'Normal'
 

Have you tried...


*Presentation Minimizer*: the Presentation Minimizer extension reduces 
the file size of the current presentation. Images get compressed and 
unnecessary data is removed. Image quality size can be minimized. Screen 
and projector presentations don't require the same quality as 
presentations intended for printing, and can be optimized. Object 
Linking and Embedding (OLE) objects are useful during the design phase, 
but can be twice the size of a regular image. Presentation Minimizer can 
replace OLE objects with images, with no quality loss. In addition to 
reducing file size, Presentation Minimizer can remove speaker notes and 
hidden slides so that you don't accidentally publish confidential 
information. The wizard summarizes all changes to be made to the 
presentation, and estimates the file size saving. Presentation Minimizer 
also works on Microsoft PowerPoint presentations.

...on low memory machine?


On 8/30/2013 11:34 PM, Uwe Dippel wrote:
> "Solved" or better: explained:
> I did it all on my netbook, with 2 GB of RAM, and yet, it seems
> insufficient to display images added. They are simply scrapped, and they
> are scrapped when converting into PDF. The same file shows on another
> system without fail as complete slide.
> I tried starting Libreoffice after a fresh reboot with nothing else active.
> So I guess that the problem is not memory but display size.
> I tried another display, by the way, with the same result. What is still
> bad, is that it drops the images silently in both cases (Slide Show and
> PDF-conversion).
> What I'd expect Libreoffice to do, is to inform me should anything go wrong.
>
> Kind regards,
>
> Uwe
>
>
>
> On Sat, Aug 17, 2013 at 1:44 PM, Brian Barker <b.m.barker@btinternet.com>wrote:
>
> > At 12:29 17/08/2013 +0800, you wrote:
> >
> > > I have prepared a large presentation, and I find that everything looks
> > > okay, except when I view it as 'slide show'. Then all images are gone. The
> > > same applies to conversion to PDF. There is no more image at all, neither.
> > I'm guessing here, but have you inserted the images as links?  There is a
> > tick box at the bottom of the "Insert picture" dialogue.  If you choose
> > links, there should be no difference if you view the presentation or export
> > it as PDF on the same system, where the images are still available at the
> > same paths.  But if access to the image files is no longer available (maybe
> > they were on a removable device which you have removed) they cannot be
> > displayed.  And if you move the presentation to another system before
> > displaying or exporting it, the image files will again no longer be
> > available at the same paths.
> >
> > Another possibility, I think, is simply insufficient memory on your system
> > to display the images.  What happens if you close other applications?  Does
> > that help?  Will the presentation display correctly on another system with
> > more memory?  You can tinker with memory settings at Tools | Options... |
> > LibreOffice | Memory.  Does that help?
> >
> > If memory is the problem, could you improve things by reducing the
> > resolution of the images?  You may have high-resolution images suitable for
> > printing in large format.  But that could be far higher resolution than can
> > be displayed in a presentation.  You could pre-process (copies of) your
> > images to reduce the resolution - and therefore file size - to something
> > suitable for display on a screen.  Does that help?
> >
> > You could test fairly easily whether the problem is fundamental or related
> > to the number and size of your images.  Just make a copy of your
> > presentation and delete all but a very few slides and images.  Does a
> > reduced version work correctly, or is the problem deeper?
> >
> > As I say, I'm guessing at all this, so take this with a pinch of salt.
> >
> > I trust this helps.
> >
> > Brian Barker - privately


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