HOWTO: Thumbnails for OpenOffice.org 2 files

**melT4** · May 23rd, 2010

Hi,
I just install this new version of ooo-thumbnailer. Thanks a lot, it's almost perfect to me. I have some office files that are not thumbnailed, but in general it's quite better than libgsf-bin.
Since you seems to be an advanced user concerning thumbnail, I have a question. Since my passage to Lucid, my ppt files are greyed and really hideous. (Screenshot)
It's not related to your script, they appear like this since my re-installation, even if I cleared .thumbnails.
Thanks, if someone could help me...
Mel

**Flimm** · May 24th, 2010

Hmm, that does look awful. I'm suspecting a bug in libgsf-bin. Try:

Code:

gsf-office-thumbnailer -i powerpoint.ppt -o out.png -s 128

And look at out.png.

**melT4** · May 25th, 2010

Thanks to you for interest in my problem.
I tried with 2 different ppt
One giving a grey thumbnail:

Code:

melanie@melanie-portable:/$ gsf-office-thumbnailer -i ~/Aires10jc_Tremblay_2010-02-16_VPA\ urea\ cycle.ppt -o ~/out.png -s 128

(gsf-office-thumbnailer:3037): GdkPixbuf-CRITICAL **: at_scale_size_prepared_cb: assertion `width > 0 && height > 0' failed

(gsf-office-thumbnailer:3037): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

One giving a OK thumbnail:

Code:

melanie@melanie-portable:/$ gsf-office-thumbnailer -i ~/Brown10jc_Tremblay_2010-04-29_3CPD\ colliculus.ppt -o ~/out.png -s 128
calling convert '/home/melanie/out.png.GAB6CV' +matte -thumbnail 128x128 png:'/home/melanie/out.png'

(gsf-office-thumbnailer:4801): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

I already tried a re-install of libgsf-bin, in case you ask. I could also add a precision : on my netbook (running also Lucid), I don't have this problem (with the same powerpoint files).
Thanks,
Mel

**Flimm** · May 25th, 2010

Well, it looks like a bug in libgsf-bin I'm afraid, and I don't know what's causing it.

You might want to try reinstalling imagemagick as the second command calls convert while the first one doesn't for some reason.

Another idea is to uninstall imagemagick completely, libgsf-bin doesn't depend on it, it only suggests it. ooo-thumbnailer does depend on imagemigick, but it might help pinpoint the source of the problem.