Dolphin preview pane issue

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21

Show previews is checked in Dolphin’s preferences:

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22

All sub folders in
~/.cache/thumbnails
are auto generated by KIO worker - not manually by me.

But KIO worker did not generate thumbnails for image files - that’s the issue

23

I repeat that it must be something specific to your system. So I ask again, have you installed any dolphin plugins/extensions?

24

No one has mentioned that there is a size limit you can restrict previews for. I don’t think that is your issue, but worth checking.

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25

That does not apply in his case — see the screenshot in Dolphin preview pane issue - #6 by christiaan. :wink:

26

Very good point, fbt89 :sunflower:

(Aragorn was faster in giving the appropiate reply than me :slightly_smiling_face:)

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27

The only thing I can suggest at the moment is to see what happens if you completely remove the ~/.cache/thumbnails/ directory, and then allow the thumbnailer to automatically recreate it.

Also, does enabling “Show item on hover” in the panel settings change anything? That should create a thumbnail when you hover over the file in Dolphin.

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28

I’ve noticed that also the creation of wallpaper thumbnails has stopped.

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So it must be a fundamental issue in creating thumbnails

29

It uses the same mechanism as dolphin.

30

Ok, how to fix it ? :slightly_smiling_face:

31

Without knowing what you did to generate this problem, no one will be able to answer that question.

As I told you earlier, we are not having that problem, so it must have been caused by something you did. :man_shrugging:

32

:roll_eyes:

33

Well, you can roll your eyes all you want, but if you’re not going to tell us what you did, then I’m sorry but then I’m not going to be wasting my time on this issue anymore.

34

Does this only happen in your current user? Have you tried creating a new user account? If it works then we know it’s not a fundamental system wide problem.

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35

This sounds very, very rude, Aragorn

36

No ruder than you rolling your eyes in reply to my post.

39

No further comment …

40

But I also what to express my appreciation for your willingness to help and to solve the issue very late at night yesterday :sunflower:

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41

Does this problem still persist?

Add some more bullish attempts to your list:

mv ~/.config/dolphinrc ~/.config/dolphinrc.bak
mv ~/.local/share/dolphin ~/.local/share/dolphin.bak

Restart Dolphin: killall dolphin && dolphin &

Next tack:

Some crazy things happen with Plasma, and something as stupid as toggling between different themes or icon packs resets the panel preview functionality.

  • Yes I know, it’s completely unrelated…
  • but for the sake of sanity, just shut up and rry:
  1. Changing the icon theme via System Settings > Icons.
  2. Restarting Dolphin after that.

Pre-requisites

  1. Copy the affected file/folder to another location.
  2. Create a new USER
  3. Log in TEST user and open the affected file/filder to check it works.
42

Just mentioning a few points as I skim through all of the above posts;

Ideally, just creating the folders should have been enough, rather than assigning permissions.

This is moreover because;

actually hold the thumbnails for your wallpaper, and not much else.

I agree, and it’s difficult to diagnose without knowing what is different about your environment from everyone else’s.

Answering this question might help, to start with;

I suggest the following procedure:

1. Logout
2. Enter a TTY from the login screen
3. rm -rf ~/.cache/* (sudo not recommended)
4. Reboot.

The ~/.cache directory is safe to delete and will be progressively rebuilt as you use your computer.

See how things stand after doing that.

Regards.

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