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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Music folders don't have album covers as thumbnails

Using Ubuntu 20 latest. When I open my folders and go to my music in my external hard disk, I can't see the image of the album in the album folder. Is there any way that I can see the image of the ...
yop's user avatar
  • 91
1 vote
1 answer
284 views

Thumbnails stopped working in GNOME

After a system clean-up, my Nautilus doesn't show thumbnails for new images any more. I reinstalled every package with the words “thumbnail” or “preview” in description, but nothing works. What did ...
Ainar-G's user avatar
  • 171
2 votes
1 answer
680 views

Mate desktop 20.04 hovering panel thumbnail causes excessive CPU usage

Observed on Mate 20.04 .iso install, host and VM. When I hover over the windows on the panel, it is supposed to generate a thumbnail for the window. When that works correctly, there is no problem(...
WU-TANG's user avatar
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3 votes
1 answer
983 views

how to make thumbnail cache permanent?

I'm trying to thumbnail an entire image directory consisting of upwards of 100,000 files, a thousand per sub-directory, to minimize delays displaying the thumbnails for each directory. (Making it ...
Michael's user avatar
  • 1,135
1 vote
2 answers
418 views

How tell my Ubuntu to look for thumbnails not only in ~/.cache/thumbnails?

If a specific app does not store the thumbnails it generates for its type of files into the usual ~/.cache/thumbnails then those thumbnails are only shown inside that specific app and not in default ...
Coeur Noir's user avatar
2 votes
2 answers
2k views

GiMP ( snap ) and thumbnails for .xcf files

On Ubuntu ( Budgie ) 20.04 when using Gimp as a snap, you’ll see thumbnails for .xcf files only « inside » Gimp and nowhere else ( Nemo, Nautilus, gThumb… ) 1⋅ how tell my session to look for ...
Coeur Noir's user avatar
3 votes
0 answers
163 views

Xubuntu 18.04 Thunar shows video and image thumbnails, but it doesn't show PDF covers

Xubuntu 18.04 Thunar shows video and image thumbnails, but it doesn't show PDF covers. It did show PDF covers in the past, but no longer does.
Chris Hamberg's user avatar
1 vote
0 answers
205 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 ...
Michael's user avatar
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1 vote
0 answers
120 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:
jaimitomartinez iambatman's user avatar
2 votes
2 answers
1k 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 ...
krio's user avatar
  • 445
5 votes
1 answer
9k views

How to repair corrupted JPEG files that still have their thumbnails?

I've got a bunch of photos that were on an SD card. Most of them are corrupted now and I cannot open them in any program (Gwenview, GIMP, same on Windows...). But every file browser can still ...
A. Ocannaille's user avatar
1 vote
0 answers
1k 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 ...
s_schroe's user avatar
1 vote
0 answers
138 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 ...
TOP's user avatar
  • 51
1 vote
1 answer
1k 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 ...
rob grune's user avatar
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0 votes
1 answer
134 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 ...
Pickledegg's user avatar
0 votes
1 answer
97 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 ...
KrawallKurt's user avatar
0 votes
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2k 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, ...
Serge's user avatar
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1 vote
0 answers
93 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 --...
espr3ss0's user avatar
  • 107
1 vote
1 answer
988 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 ...
Aslan French's user avatar
4 votes
0 answers
315 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 ...
Display name's user avatar
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1 vote
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112 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 ...
Yeti's user avatar
  • 212
2 votes
0 answers
132 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" ...
Soph3D's user avatar
  • 21
2 votes
3 answers
2k 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 ...
JRo's user avatar
  • 73
4 votes
0 answers
753 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 ...
Tuomo Sipola's user avatar
5 votes
0 answers
1k 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 ...
Bruni's user avatar
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1 vote
1 answer
636 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 ...
metichi's user avatar
  • 897
1 vote
0 answers
117 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 ...
Jaha's user avatar
  • 11
0 votes
1 answer
1k 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 ...
Ricardo's user avatar
  • 15
1 vote
0 answers
249 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 ...
rd17's user avatar
  • 11
1 vote
1 answer
1k 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] ...
Ricardo's user avatar
  • 15
3 votes
1 answer
3k 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 ...
Chgad's user avatar
  • 233
2 votes
2 answers
580 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 ...
Indigestion's user avatar
2 votes
1 answer
1k 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 ...
MWB's user avatar
  • 724
8 votes
1 answer
3k 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
gatorback's user avatar
  • 5,755
9 votes
3 answers
12k 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. ...
Dj Quaresma's user avatar
0 votes
0 answers
802 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 ...
user227495's user avatar
  • 4,069
2 votes
2 answers
2k 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 ...
Sheldon's user avatar
  • 21
1 vote
0 answers
211 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.
A. Costantino's user avatar
4 votes
1 answer
2k 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 ...
Josh Berger's user avatar
1 vote
1 answer
2k 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 ...
kerner1000's user avatar
  • 4,220
0 votes
0 answers
542 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" ...
00fruX's user avatar
  • 1,271
4 votes
2 answers
1k 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 ...
John.Dough's user avatar
1 vote
0 answers
234 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 ...
Bluebug's user avatar
  • 141
15 votes
3 answers
6k 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 ...
guettli's user avatar
  • 1,717
1 vote
0 answers
172 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.
BaronKrause's user avatar
0 votes
1 answer
232 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 ...
Christians's user avatar
8 votes
3 answers
2k 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 ...
Sasha MaximAL's user avatar
0 votes
0 answers
39 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 ...
Spectra's user avatar
  • 211
1 vote
1 answer
1k 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?
Alessandro Menozzi's user avatar
1 vote
1 answer
5k views

Where are the thumbnails of a new image located?

I read Where are icons stored? about the location of Ubuntu built-in icons (for instance /usr/share/icons/gnome/256x256/appsgnome-terminal.png). But I am confused about the icon location of a new ...
Panichi Pattumeros PapaCastoro's user avatar