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I installed Ubuntu 16.04 and installed dolphin (15.12.3) + FFMpegThumbs so that I can see thumbnails of videos but when I went to the previews the box was just blank.

edwinksl
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jimbob1986
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  • In the Dolphin preferences under General -> Previews the option FFMpegThumbs must be ticked. Did you check that? – Stéphane Tréboux Apr 23 '16 at 13:05
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    I found the answer on http://askubuntu.com/questions/411891/dolphin-thumbnail-didnt-show?rq=1 you have to install kio-extras thanks for answering step – jimbob1986 Apr 23 '16 at 13:18
  • I have `ffmpegthumbs` and `kio-extras` installed on my system and it still doesn't work. FFMpegThumbs is enabled in the Dolphin options. – Stéphane Tréboux Apr 23 '16 at 13:35

1 Answers1

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ffmpegthumbs 4:15.12.3-0ubuntu1 is buggy and unpacks ffmpegthumbs.so to the wrong location. Until the package is fixed a workaround is to link the files to the correct location:

sudo ln -s /usr/lib/x86_64-linux-gnu/plugins/* /usr/lib/x86_64-linux-gnu/qt5/plugins/

This works on my installation of Kubuntu 16.04 LTS. By the way ffmpegthumbs needs kio-extras to work (should be installed on Kubuntu by default as a dependency of kubuntu-desktop).

Stéphane Tréboux
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    Thanks a ton. Was searching for a solution for hours. linking works on 16.04LTS for me. – Ashish Apr 23 '16 at 17:50
  • `suo apt install kio-extras` solved the problem for me on 17.10.1 – jrouquie Jan 17 '18 at 10:15
  • @JulianLai: The location specified by `ffmpegthumbs` used to be correct until a new location was introduced by QT5 and used by the new version of Dolphin based on QT5. – Stéphane Tréboux Jan 17 '18 at 10:46
  • @jrouquie: `kio-extras` is always needed for Dolphin previews, this is mentioned in my answer. What really happened is that [the bug in ffmpegthumbs was fixed](https://bugs.launchpad.net/ubuntu/+source/ffmpegthumbs/+bug/1574037). The workaround described in my answer is not necessary anymore with newer versions of Kubuntu. – Stéphane Tréboux Jan 17 '18 at 10:48
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    `sudo apt install kio-extras` was still needed to solve the problem on Ubuntu 18.04 (not Kubuntu, where I'm glad to learn it's installed by default). – jrouquie Jun 11 '18 at 09:00