Often videos I took from my phone don't have a thumbnail on my computer. How to track that down?
from a_new_sad_me@lemmy.world to linux@lemmy.ml on 14 Mar 21:05
https://lemmy.world/post/26847995

I have a Samsung phone and I use the default camera to take videos. Then, in my home wifi, I transfer the files to my server using syncthing. The folders where these files are stored is then mounted on a different computer via lan (my main machine). The videos on that machine don’t always have thumbnails and I’m not sure why. How can I track that down? At what stage should the thumbnail be generated?

Technical information (based on questions that I am asked):

Solution
On dolphin go to settings -> preview -> file size for remote storage.

#linux

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[deleted] on 14 Mar 21:16 next collapse

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catloaf@lemm.ee on 14 Mar 21:18 next collapse

What format are the files? What are you using to view the thumbnails?

a_new_sad_me@lemmy.world on 14 Mar 21:33 collapse

Important questions, I’ve added this to my original post:

  • The files are mp4
  • I’m using kubuntu 24.10
  • I’m using Dolphine file browser
just_another_person@lemmy.world on 14 Mar 21:58 next collapse

Do a test: copy a bunch of videos directly from your phone to a test folder separate from the current one you use. See if all of the files get thumbnails.

schnurrito@discuss.tchncs.de on 14 Mar 22:06 next collapse

These settings don’t do what you want?

<img alt="" src="https://discuss.tchncs.de/pictrs/image/ffa57716-a86c-4511-9eb8-65b10b2bcb42.png">

mactan@lemmy.ml on 14 Mar 23:31 next collapse

dumb dolphin thing I forget every couple years, F12 toggles thumbnails on and off

meekah@lemmy.world on 15 Mar 10:09 collapse

omg thanks for this

liliumstar@lemmy.dbzer0.com on 15 Mar 07:10 next collapse

In this scenario, the thumbnails are going to be generated when you browse the directory. Probably what network filesystem you’re using. Alternately, maybe there is a maximum file size on previews? I know dolphin has that option.

0x0f@lemmy.blahaj.zone on 15 Mar 14:35 collapse

Alternately, maybe there is a maximum file size on previews?

it’s likely this, the mp4s don’t have thumbnail embedded and dolphin is skipping the big ones

a_new_sad_me@lemmy.world on 15 Mar 16:36 collapse

Yes! This is it. Thank you!

marl_karx@lemmygrad.ml on 15 Mar 10:14 collapse

try installing ffmpegthumbnailer and see if that works after reboot / relogin, if not uninstall and try another method

marl_karx@lemmygrad.ml on 15 Mar 10:14 collapse

i only ever used arch linux idk how other distributions handle it