Bug 187972

Summary:	Dolphin doesn't show previews for many images
Product:	[Applications] dolphin	Reporter:	Yuri <yuri>
Component:	general	Assignee:	Peter Penz <peter.penz19>
Status:	RESOLVED DUPLICATE
Severity:	wishlist	CC:	bluedzins, finex, illissius
Priority:	NOR
Version:	16.12.2
Target Milestone:	---
Platform:	FreeBSD Ports
OS:	FreeBSD
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Yuri 2009-03-24 07:29:26 UTC

Version:            (using KDE 4.2.1)
OS:                FreeBSD
Installed from:    FreeBSD Ports

I have a large folder with few hundreds large jpg images from the camera.

Dolphin only shows previews of some images and not from the others.

It leaves an icon instead.

When I click on the image having no preview image still opens and shows ok.
But preview is never shown.

Choosing <left mouse button> -> Actions -> Preview This File
does nothing either.

Comment 1 Peter Penz 2009-03-24 08:03:50 UTC

Thanks for the report. Did you check the maximum preview size in the Dolphin settings? Per default it is set to 5 MB, I guess this might be the root cause. Please just increase the value to your needs.

Comment 2 Yuri 2009-03-24 08:21:18 UTC

Yes, I figured out that's the maximum preview size.

In this case dolphin should show a message (in a tool tip?) that preview isn't generated because file size is over the limit.

Otherwise it's confusing.

Comment 3 Peter Penz 2009-03-24 08:26:36 UTC

OK, I'll think about your idea to show an indication -> I've changed the report to WISH so that I don't forget about it :-)

Comment 4 Gábor Lehel 2009-05-17 11:55:31 UTC

I have the same bug, but in my case it's actually a bug. Big folder with lots of images, but it only shows previews for maybe a tenth of them, at best. It's not because of the file size limit -- all of them are well below it. There's no correlation to either file size, file name, nor date, as far as I can tell. Doesn't seem to be affected by choice of graphics system, either. I also tried rm -rf ~/.thumbnails, to no effect (the same images were without previews as before). The preview in the information panel when hovering an image works just fine. This is a regression, as it's only started doing this relatively recently (couple of weeks?).

Interestingly, as I just accidentally noticed, it depends on the size of the previews -- all of them are still shown at 160 pixels, and then progressively fewer as I raise the size to 176 and above.

I'm using Qt 4.5 from qt-copy, kdelibs and kdebase r968942.

Comment 5 Maciej Pilichowski 2009-06-30 16:30:43 UTC

Gabor, bug-report: https://bugs.kde.org/show_bug.cgi?id=198132

Do you use splitview by any chance (please answer in the other report, not here, because those two are separate issues) or max size of preview (I do).

Comment 6 FiNeX 2010-08-14 17:39:27 UTC

@Gabor: you should try a more recent KDE/Qt version. If you can still reproduce the bug please report it as a new bug.

*** This bug has been marked as a duplicate of bug 154855 ***