Questions tagged [thumbnails]

Thumbnails are reduced-size versions of pictures/videos/PDF's, Used to help in recognizing and organizing them.

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16 views

Can Nautilus create thumbnails in separate directories for each mount point?

I've got some external and network drives and I have noticed that Nautilus keeps a single directory in ~/.cache/thumbnails which it uses to store thumbnails of these external drives right along with ...
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23 views

What Types of files are stored in Thumbnails Ubuntu 16.04 LTS _Xenial Xerus

I am new to Ubuntu so please bare with me. I am using Ubuntu 16.04 LTS _Xenial Xerus I am trying to figure out what is saved in the following location: "\home\oem.cache\thumbnails\large" More ...
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29 views

Is there a way to change the icon size of the file selection dialog?

I would like to have actual thumbnails here instead of this list and that tiny thumbnail on the side:
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1answer
45 views

Thumbnails on desktop are stretched and do not keep aspect ratio of original thumbnails

Thumbnails of pictures and PDF files on desktop do not keep aspect ratio. If I open the desktop folder in the default gnome file manager, the icons aren't stretched. The problem is only with what is ...
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16 views

How to repair Corrupted jpeg file that still get their thumbail done correctly?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now, I cannot open them in any program (Gwenview, Gimp, on windows too...) But every file browser still can correctly ...
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33 views

Remove preview (and thumbnail) from MP4 file

How does one remove the preview and thumbnail from a MP4 file (or other video format)? I just simply want to remove it and have a blank icon and preview image. I'm using OpenShot video editor which ...
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51 views

gThumb 3.9.1 on Xubuntu 18.04 won't load thumbnails

I just installed gThumb 3.9.1 on two Xubuntu 18.04 machines. One is fine, works great, with the minor exception that the launchers don't find the new icons, so it uses the default "?" instead. (any ...
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79 views

Mate/Caja doesn't show all video thumbnails…fix?

So I'm using Mate and the file program Caja. Typically this shows thumbnails for my video files and this works great. But...if my videos are large, there is a certain % chance that the thumbnail won'...
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65 views

18.04 LTS Nautilus jpeg thumbnails not displaying

I recently did a clean install of 18.04 LTS on a Lenovo Laptop. The thumbnail previews do not display for common files like JPEGs and mp4 files. I have tried changing the settings in Preferences to ...
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1answer
195 views

Kubuntu 19.10. Why no thumbnail preview?

I have thumbnails, but no previews on desktop and and none in dolphin. Via muon, all thumbnail related apps and libraries are installed. In dolphin, the preview button in menu does nothing. Can ...
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1answer
79 views

Thumbnails in Ubuntu 19.10 in list mode

If I set the layout in files to grid mode, I get image thumbnails, but not when in list mode. I've checked ownership & permissions on ~/.cache/thumbnails and also emptied the folder. Am i missing ...
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1answer
47 views

Save Thumbnails on server

Is there a way to save nautilus thumbnails on a NAS instead of ~/.cache/thumbnails? I have multiple devices accessing a NAS and it takes very long to always generate the thumbnail images. I'm ...
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48 views

Viewing SVG from fileviewer Ubuntu 16.04

I'm working in 16.04 with many SVGs to add them into some projects, but it's impossible to find the correct SVGs since they show up as black on white, without color. . Is this normal? Is there some ...
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104 views

Ristretto, thumbnails are not displayed from mc, only from file manager

Issue. In ristretto, thumbnails are not displayed when it start from mc, only when it start from file manager. Where could be the catch? Thanks. System info. Linux local 5.0.0-36-generic #39~18.04....
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359 views

Video Thumbnails Maker for Ubuntu

I need a program which can generate video thumbnails (not a single, but picture with rows and columns of video track) into a jpeg file. Currently I have to run Win7 as vm machine with shared folders, ...
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90 views

No thumbnails for directories in Nautilus, in Ubuntu 18.04

Icons of directories and files shown as icon for generic file (Click to see image) Nautilus file manager fails to show the icon for a directory as a folder. Instead, Nautilus shows the icon of a ...
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66 views

Missing image thumbnail in file manager or image viewer until edited

Ubuntu 18.04. Just downloaded a bunch of photos from a digital camera and there is no thumbnail in either file manager or Ristretto Image viewer. But, when I edit one of the photos in GIMP, after ...
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80 views

Nautilus image & video thumbnails (Ubuntu 18.04 LTS)? [duplicate]

Trying to get image and video (mp4) preview / artwork thumbnails but no go? I've tried, Nautilus preview preferences ubuntu-restricted-extras update-mime-database ~/.local/share/mime apt install --...
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1answer
292 views

How do I fix some broken thumbnail preview settings in Nautilus?

Okay, I wanted previews for psd files in Nautilus. So I tried the scripts found on this page: How to make Nautilus display .psd thumnails? This did not work, so then I found this maintained PPA, and ...
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94 views

How can I preview iPhone photos in Nautilus file manager?

I've selected the Nautilus setting to always show thumbnails and it works when browsing most directories containing images with Nautilus, but it doesn't work for my iPhone directory. How can I ...
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60 views

Konqueror does not show preview for video files

I'm using konqueror on Kubuntu 18.04. ffmpegthumbnailer and kffmpegthumbnailer are installed and the preview for video files is activated in dolphin. (Konqueror does not provide an option for this ...
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65 views

How can I generate custom image format thumbnails?

I'm trying to get thumbnails to appear for a custom image format in Nautilus on 19.04. The problem I'm running into is the thumbnails will only be generated once I open the files (.VTF "image/x-vtf" ...
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3answers
1k views

Nautilus doesn' allow thumbnail for image size above 4096 KiB

In Ubuntu 18.10, Nautilus doesn't allow thumbnail size for image above 4096KiB. In preference pane, it is not possible to increase value above 4096. This is a regression, because it was possible ...
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352 views

Gnome Nautilus thumbnail generation is extremely slow

After updating from 18.10 to 19.04, thumbnail generation has been extremely slow. And by that I mean it takes from 10 min to 1 hour for Nautilus to generate ONE thumbnail image. I already tried ...
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485 views

thumbnail.so taking up 100% CPU each time I open dolphin

After updating to Kubuntu 19.04 each time I open dolphin, a process called thumbnail.so is using up 100% of my cpu. It respawns when I kill it, without closing dolphin. I have a webdav share mounted ...
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1answer
155 views

How to manually create a thumbnail for one file using another file

I draw a lot with Clip Studio Paint, wich works almost flawlessly with wine, but the only major caveat is that the original files are in a format that doesn't have thumbnail support in linux (as far ...
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94 views

How can I make 18.04 show thumbnails?

I did upgrade from 16.04 to 18.04, and now no thumbnails, so I must open an image to see what it is! I don't know what the new 18.04 windowmanager/desktopmanager/filemanager exactly are, and which ...
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1answer
134 views

How to md5 special characters - Thumbnail related

I have written a script to generate custom Thumbnail for my nikon raw files (.NEF). So far so good. Now the thumbnail file name must be the md5 of the absolute path of the NEF image, as stated here ...
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0answers
225 views

Ubuntu 18.04 not showing thumbnails for audio and pdf files

I chose minimum installation at the beginning and after that I have installed ffmpeg Thumbnailer and tried sudo chown -R $USER:$USER ~/.cache/thumbnails and clearing the thumbnails folder but still ...
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1answer
555 views

Nautilus Raw thumbnail (ufraw) - Bug found in archives

I have followed many tutorials around the internet and basically they say: Install ufraw -> Done Create file at /usr/share/thumbnailers/something.thumbnailer with content: [Thumbnailer Entry] ...
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1answer
472 views

Nautilus not showing thumbnails for PNG files

My Nautilus file-manager does not show a preview of PNG files. Ubuntu Version: Ubuntu 18.04.2 LTS Nautilus Version: GNOME nautilus 3.26.4 I have tried various "solutions" form the web like : sudo ...
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2answers
340 views

Cannot get thumbnails for images on nautilus but can for video

I'm running Ubuntu 18.04.1 LTS and ever since I installed it afresh, I have not been able to get thumbnail of normal files, like .png, .jpg, etc. However, unlike other posts, I can actually get ...
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0answers
486 views

Only some of the PDF thumbnails showing up?

Half of my PDFs have thumbnails and the rest have a generic "PDF" icon. I tried deleting ~/.cache/thumbnails/fail but this doesn't seem to help. The thumbnails that do get generated are created very ...
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0answers
609 views

How to Display .HEIC thumbnails in Nautilus?

What are the steps to configure 16.04's Nautilus file manager to display thumbnails of .HEIC photos? file IMG_1001.HEIC IMG_1001.HEIC: ISO Media
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2answers
2k views

How do I get video thumbnails on Ubuntu 18.04.1 LTS?

Video thumbnails simply stopped showing. I still get the PDFs and images thumbnails, but the video ones are no longer showing. I've already tried everything I found in Google, but nothing works. ...
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699 views

Thumbnail preview in 18.04

I think it will show thumbnails for folders by default in 18.04. But when I hover over the files icon, even with 2 folders open, I do not see a thumbnail. Not just folders, it does not show thumbnails ...
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1answer
899 views

18.04 file manager preview thumbnail size

Running Ubuntu 18.04 LTS. Trying to figure out if I can adjust thumbnail size of previews in the file manager. Right now with the Pictures folder open, I have 7 rows of 11 files each. I'd like to have ...
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85 views

Disable thumbnail preview on file upload menu

I want to disable thumbnail when I press "upload a file" in a browser. I tried to remove the package tumbler, but it is still showing the picture.
4
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1answer
308 views

No thumbnails for mp3 files in 18.04 (Nautilus)

When I edit a music file in mp3 format, I insert an image with easytag. When I play the file, the multimedia player (vlc, rhythmbox, smplayer...) does show me the cover of the file that I inserted ...
1
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1answer
341 views

Delete all Thumbnail Pictures

I messed up with the thumbnails folder, now those thumbnail pictures are all over the place. How can I find all of the thumbnail pictures and delete them? Do they have a specific size? Or naming ...
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0answers
299 views

Ubuntu 18.04 iPhone thumbnails

Apple iPhone SE with version 10.3.1. I plug my iPhone in and press the "Trust" button on the iPhone screen. I browse to my iPhone and switch to thumbnail view. All I see is the generic "tree" ...
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2answers
137 views

Set different views (list, thumbnail) for different folders?

As per the title, is it possible to set different types of views for each individual folders in the GUI ? Changing the setting in one folder changes the view in all of them. I'm switching from ...
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0answers
190 views

Why Nautilus is taking too long to load thumbnails in 18.04

I just fresh installed 18.04.1 yesterday and I'm noticing nautilus is taking significantly long to load thumbnails of files (regardless of their size). Like more than 5-7 minutes. In 16.04, thumbnails ...
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3answers
2k views

Nautilus: Show image thumbnails at more than 200% size

I would like to delete some images with nautilus. I increased the size to 200%. My monitor has a high resolution and the image are too small for me. I would like to increase the size even more, but ...
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0answers
171 views

Ubuntu 18.10 GIF Thumbnails? [duplicate]

Anyone manage to get thumbnails for GIF files working in 18.10? None of the previous methods for adding a custom thumbnailer seemed to work for me like it did in past Ubuntu versions.
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1answer
130 views

Thumbnails for NEF are too big

My thumbnails are huge: a 20MB Nikon NEF image has a 18 MB thumbnail generated in PNG format in .cache/thumbnails. Thumbnails for NEF did not show by default in 18.10. I followed Nautilus isn't ...
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0answers
111 views

No thumbnails are showing on Xubuntu 18.04 [duplicate]

I recently re-installed Xubuntu 18.04. After re-installation thumbnails stopped loading after some time. At first it loaded a few thumbnails and stopped, but it even stopped showing the loaded ...
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3answers
1k views

Custom thumbnailers don’t work on Ubuntu 18.10 and 18.04

Recently I had a bunch of my own scripts for the thumbnails in Nautilus: WebP previews, sound waveforms, office documents and so on. Seems like either I’m doing something wrong (thumbnail generation ...
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0answers
35 views

Changing the size of files

When sending files through bluetooth, it doesn't expand the image I click, so that I can be sure of the image I want to send. Is there any settings to change that ? EDIT : As GabrielaGarcia ...
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1answer
796 views

No thumbnails preview

I have installed ubuntu 18.10 and have no thumbnails preview for any file, such as it was in previous version. In preferences the setting is on "show preview" for all files...Any ideas someone?

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