Since a few months Dolphin does not save the thumbnails of the (second) internal SSD anymore. They are recreated every time I open a folder.
The preview images of the SSD where KDE is installed do not have these problems.
This problem does not exist with Thunar under KDE.
Can someone help?
open dolphin/settings/configure dolphin/generel/previews select the previews you want, set the ‘skip previewd for local files above’ to ‘no limit’ and check …
if doesnt work, is your second disk being mounted on boot?
Dolphin uses the
kdegraphics-thumbnailer while Thunar uses the dbus service via
tumbler installed via File Manager Settings for Thunar. Even tho both are saving the thumbnails in your home directory
~/.cache/thumbnails/ (see the folders in there) each has an unique ID file name, and for the same original image the thumbnail will have a different compression, so it might be because of that Dolhin fails to display thumbnails created wit the other tool. I might be wrong on this. Also, i think the new way to create thumbnails on Dolphin, for image files, to me looks like has a bit of regression …
The value is set to ‘no limit’, the second value I set to 16,000 MB. Yes, the second hard disk is mounted at boot time.
Dolphin recognizes the thumbnails that Thunar has created and loads these thumbnails when opening a folder.
How to create thumbnails other than by opening a folder in Dolphin?
AFAIK the thumbnails are generated on demand, but i have seen some scripts here https://askubuntu.com/questions/199110/how-can-i-instruct-nautilus-to-pre-generate-thumbnails
using a routine outside the file manager …
In case you want to try, remove from
~/.config/dolphinrc the entry related to
[PreviewSettings] and everything under it, save it, and reopen Dolphin …
so go again to dolphin settings/ previews and modify the
skip previews for remote files as you desire … on the kde channel it was mentioned that it is a bug and this should give you previews … if it doesnt work than changing kernels should also help…
Unfortunately, neither of these helped.
and what size did you input? you could try something large like 5 giga
I tried 100 MB, 16,000 MB and 32,000 MB.
I have known in the past that someone had the same problem that is caused by some package e.g. (
wps-office) or third party application.
You can check if creating a new user also has the same problem?
- Try to create a new KDE user.
- Switch to the new user.
- See if thumbnail works?
Thanks to all for the help. Then we have found the error. It is a bug.
For all those who are looking for a solution: Install Thunar (thunar, tumbler, ffmpegthumbnailer) and create the thumbnails with it. They will then also be recognized by Dophin.
Adjust the file size in: /etc/xdg/tumbler/tumbler.rc
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