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I have a large collection on pictures which needed cropping, color balancing, autotuning, etc. Now Thunar is showing the old thumbnails and is very confusing because i can't visually separate edited pictures from unedited ones. How can i make Thunar automatically regenerate or create new thumbnails for the edited pictures?

2
  • Have you tried simply refreshing?
    – anonymous2
    Jul 18, 2016 at 13:16
  • I tried refreshing multiple times, i tried log out, i tried even rebooting PC. No change. Just the same old thumbnails.
    – ipse lute
    Jul 18, 2016 at 14:42

3 Answers 3

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Remove all contents of ~/.cache/thumbnails/normal:

rm ~/.cache/thumbnails/normal/*

...and refresh the folder in thunar.

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  • It works, but i just had to individually confirm the deletion of some files with very long names. I kept on pressing Y (for yes) and Return for like a dozen times. Is there any way to make a recurrent answer for that, like -y or something?
    – ipse lute
    Jul 18, 2016 at 18:28
  • Add the -f option, @ipselute.
    – anonymous2
    Jul 18, 2016 at 18:29
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Its required to delete both normal and large thumbnails:

find ~/.cache/thumbnails/ -type f -print -delete

-print will print list of deleted files and can be removed.

0

Deleting ~/.cache/thumbnails/* didn't seem to help in my case, I had to regenerate thumbnails by refreshing (Ctrl+r) each view in Thunar. That is, having the first set of files in view in Thunar, refresh, then scroll and select a file not in view, refresh, etc. until all files have been in view while refreshing. Of course it's faster if you zoom out (Ctrl+-) to have more files in view.

It worked for JPGs, but the older thumbnails kept attached to raw (.NEF) files.

I ended up using this more radical solution :

rm $(locate thumbnails)

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