On Thu, Aug 08, 2013 at 08:07:16AM -0400, Alexandre Couture wrote:
> > From: tdecoulon@...
> > 
> > Hello all,
> > 
> > I'm running Trinity (latest stable) on openSuSE 12.3. In Konqueror (file 
> > management). It seems I can get previews for "smaller" pictures (up to at 
> > least  4896x3264 pixels), but not for  larger ones (7216x5412).
> > 
> > Gimp loads these,  kview does not, neither can Gwenview. However, if I load 
> > the pictures in the Ristretto Image Viewer (that obviously creates thumbnails 
> > for it's own use), then refresh in Konqueror, I get the previews.
> 
> I'm not 100% sure, but if I remember well, most file managers with previews does not show thumbnails previews of very large files, to make sure your computer doesn't stall if you enter in a folder full of very large pictures files.

The settings that affect this are in Control Centre / KDE Components /
File Manager.  There is a tab titled "Previews and Meta-Data" which has a
setting for the maximum filesize that will have a preview generated when
browsing in icon mode, and another denoting whether to use an image's
embedded thumbnail (if any).  You can also select which access protocols
will use previews, so that you don't accidentally preview large files
over a network.

I could well suppose that TDE will use an already generated preview
if another tool has made one and left it in the previews directory,
although I can't find what that directory is called right now.

The "Behaviour" tab also has an option to cause the preview to be used
in the mouseover tooltip.

Nick