How can I get icons/thumbnails for .cbr (comic book) files and .mp4 (video) files to display properly on the desktop and in Dolphin file manager in KDE on Fedora?

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1

I have a CBR file and an MP4 file on my desktop, but they don’t show thumbnails; instead, they just show the software icon. I’ve tried configuring Dolphin’s preview options, and both ‘Comic Book’ and ‘Video Files’ are checked. I also have kde-thumbnailer-comic installed. Does thumbnail rendering on the desktop depend on specific software? Last time I used Arch Linux with KDE, it showed previews for both

2

Have you adjusted the settings under view to change the view mode and to show previews (F12)? Here’s a zoomed in view of the only CBR I have and as you can see, it’s thumbnailing it fine, without any additional installations to Dolphin - nothing other than Ctrl-1, Ctrl-2 and Ctrl-3

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3

I got it working right after I started this thread! :rofl: Mine was only showing the generic software icons on the desktop and in folders.

  • For media: Install ffmpegthumbs.
  • For comics: Install gnome-epub-thumbnailer, since kio-extras doesn’t seem to show thumbnails for large files.