limit on local file preview size has been removed for a couple years now in bug 273226. there still are some cases where a (hardcoded ?) limit of 3mb seems to be used. these are : a) folder preview of contained images; b) image properties, preview tab. it might be something entirely else, but all my tests seem to indicate that images, larger than 3mb, do not get previews on higher level folder icon and in the properties. other images from the same camera with same size and other properties do work just fine. Reproducible: Always
Thanks for the bug report. You mention two different issues, neither of which can be fixed in Dolphin itself: > a) folder preview of contained images; The code that generates folder previews is in kde-runtime AFAIK. I think the most suitable product would be "kio", component "thumbnail". > b) image properties, preview tab. The properties dialog is provided by kdelibs. The product at bugs.kde.org is "kfile", component "kpropertiesdialog". Please file separate reports about these problems for the correct components. (If it was just one component, we could reassign this report.) Thanks.
that would then be : bug #331240 bug #331242