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So yeah, I just installed Ubuntu 24.04 LTS a few days ago and I'm trying to get everything up and running.

So I installed Ubuntu 24.04 LTS and I realized none of the video thumbnails were showing up and yeah I know the drill there's something you have to enter in command line to get the thumbnails to show up so I googled and found this File manager in Ubuntu 20.04 not showing thumbnails

Ok so I did this in command line

sudo apt install ffmpegthumbnailer

Ok and that made all the thumbnails appear.

But then out of curiosity just to see what it'd do I went into my Home folder, then went into the .cache folder, and then I sent the "thumbnails" folder to the trash and then emptied the trash and restarted my PC.

When I logged back in lo and behold 98% of the video thumbnails aren't showing up, though pictures are showing up just fine. And the thumbnails folder is there so it came back, just noting that.

Just an FYI, I installed the Nemo file manager and even in Nemo the video thumbnails aren't showing up either.

I was thinking about uninstalling FFMPEG Thumbnailer and then reinstalling it (and if I do need to do this will you please tell me how to uninstall FFMPEG Thumbnailer?) but I'd thought I should seek advice from the Linux experts before I continue.

So what should I do to fix this? I hope I don't have to do a clean install of Ubuntu 24.04 to fix this.

SpaceX
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1 Answers1

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Reproduced steps - same issue. Photos regenerate, yet most videos don't.

Solution: Nemo -> Edit -> Preferences -> Preview -> "Only for files smaller than" set to 1gb

This should solve you issue.

For fun I've tried to uninstall ffmpegthumbnailer. Nemo proceeded to not generate thumbnails (which is weird considering I have other thumbnailers set up in /usr/share/thumbnailers). Reinstalling fixed the issue and kept the preference setting.

Sheepas
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