Version: (using KDE 4.3.2) Installed from: Ubuntu Packages My desktops wallpaper is centered only 160x120 pixel, although the original jpg has a resolution of 800x600. I think for some reason it takes the thumbnail embedded within the jpg instead of the real data. If I set option, to stretch the picture to the whole screen it has a horrible quality bluring all details (does not depend on the stretch method, as the input is only the thumbnail data). I don't think there is an error in the jpg-file, as I have a whole directory with 100+ jpgs downloaded from the same website and many if not all show only the thumbnail. Back in KDE 4.2.2 these pictures worked fine.
Created attachment 40019 [details] Screenshot of my desktop I've blurred the left side and inserted two screenshots of kruler to measure the size of the thumbnail.
Created attachment 40020 [details] One of the "broken" Jpegs
tested here with kde 4.3.3 and it works very well. very strange..
@Holger, check it on KDE SC 4.3.3 or 4.3.4 Regards
OK, now, that you've checked, that the photo is valid, I copied it to a fresh user-profile and it worked. So it's a problem in my configuration. There is only one big folder, nothing special about it ... I thought. But now I found the source: within is a hidden folder ".thumbs" containing each and every single picture again as a thumbnail. I wonder, which program created them? Can be any of: Konqueror, Dolphin, GwenView, XnView, Gimp, ... The thumbnails are dated from September 2007 ... So in an earlier versions of KDE, the hidden folder was just ignored. I wonder, what would have been the reason, to change that? For now I try to delete them. But what can I do, if the .thumb folders are recreated by some program browsing the picture collection? My apologies to blame this on Plasma. Maybe you could change this into a feature request, to explicitly ignore hidden files/folders when selecting a backgroud-image???
- Where is this ".thumbs" folder located ? There is a ".thumnails" folder in $HOME (/home/user/.thumbnails) which several applications use (as those thumbs are created by a common protocol) Are you using "Image" (only one) or "Slideshow" ? If you use the single Image format, you need to manually select the image file (and you can ignore the .thumbs version) If you use the Slideshow plugin, then , the .thumbs folder is going to be included in the "image pool". Regards
You're right, there is a folder ~/.thumbnails (and BTW: it's a bad idea to open it in Dolphin, trying to get a look of the pictures, because it will recursively produce more thumbnails for the thumbnails it made before ...) But in contrast I was referring to this directory-structure with more redundant thumbnails: /home/holger/Bilder/Hintergrund /home/holger/Bilder/Hintergrund/.thumbs /home/holger/Bilder/Hintergrund/folder1 /home/holger/Bilder/Hintergrund/folder1/.thumbs /home/holger/Bilder/Hintergrund/folder2 /home/holger/Bilder/Hintergrund/folder2/.thumbs ... Second: I'm indeed using the slideshow and always have. That is why I was so surprised of KDE 4.3.2 introducing me to those hidden thumbnails, that I considered this a bug :-)
Merging with bug 218876. Thanks *** This bug has been marked as a duplicate of bug 218876 ***