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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Larger thumbnails in Image Viewer (eog) or gThumb

I'm looking at images in full-screen mode with the thumbnail strip - both gThumb and eog work well, but the thumbnails are very small. So: In eog, I go to [bar menu] > image gallery. The thumbnails ...
Matthew's user avatar
  • 423
0 votes
1 answer
271 views

How to make a thumbnail for xmind file

I have installed Xmind in Ubuntu 18.04 instructed by this script. But I want to create a thumbnail for Xmind filetype. I think thumbnail can be generated by an icon downloaded from the internet. I ...
l0o0's user avatar
  • 123
3 votes
0 answers
1k views

Automatically generate raw thumbnails only with gThumb

I would like to generate camera raw file thumbnails (Nikon .NEF) in Nautilus with gThumb, without opening the app, and when no additional thumbnailer is installed. Some script or a Terminal command, I ...
cristian mos's user avatar
11 votes
2 answers
22k views

Fix thunar doesn't show image/video thumbnails in xubuntu 18.04

No matter what I do the result is there no image/video thumbnails $ thunar --version Thunar 1.6.15 (Xfce 4.12) $ sudo apt install tumbler tumbler-plugins-extra ffmpegthumbnailer Reading package ...
Xayden Rosario's user avatar
4 votes
0 answers
2k views

Nautilus does not show thumbnails anymore in list view 100% zoom

Since I upgraded to Bionic Beaver, I don't see the thumbnails in list view anymore when the zoom level is 100%. I must zoom to 150% to see them. How to change that back ? I did not find any obvious ...
Johannes Lemonde's user avatar
43 votes
6 answers
70k views

Thumbnails not showing in video in Ubuntu 18.04

I have Ubuntu 16.04 LTS and I've manually installed Ubuntu 18.04 LTS. Everything looks fine except video thumbnails. How to solve this?
Vikas's user avatar
  • 513
2 votes
1 answer
568 views

Thumbnail previews in Files/Nautilus only show when zoom is 150% or more (18.04)

I don't get thumbnail previews in Files (Nautilus) at the default zoom level when using List view. If I select 150% in the hamburger menu the thumbnails are displayed, and they are displayed in Grid ...
Pudica's user avatar
  • 61
0 votes
1 answer
848 views

Ubuntu 17.10 does not display thumbnails for videos

Though not a serious issue, it still bothers me. It displays thumbnails for images. I've also tried clearing thumbnails folder in ~/.cache/thumbnails.
mohammed thaha jk's user avatar
1 vote
0 answers
162 views

Can you view a gif icon as an still thumbnail image? [duplicate]

I have a few GIF images, but they are just a grey icon that says GIF. Can't tell them apart otherwise aside from the name. In other words: my picture folder has images, you know which one you are ...
NappyBob's user avatar
3 votes
1 answer
4k views

How can I generate thumbnails in advance on KDE / Dolphin?

Revisiting this Q&A about pre-generating thumbnails on Nautilus/GNOME I recently had to discover that none of the scripts posted there would work on KDE Plasma 5 / in the Dolphin file manager. Is ...
Glutanimate's user avatar
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1 vote
1 answer
462 views

No thumbnails for GIF images in Ubuntu 17.10

I set up thumbnails for GIF images on an earlier version of Ubuntu by following the instructions in this answer. Since my upgrade to 17.10 I've noticed GIF thumbnails are no longer generated. I've ...
Brad Buchanan's user avatar
0 votes
1 answer
383 views

I dont see image thumbnails in my ubuntu 16.04 since I reckoon I installed UbuntuTweak

I tried hard solving this problem having some research on the net and trying with some coding. I tried already erasing the thumbnails cache and didnt work sudo rm -rf ~/.thumbnails/* ~/.cache/...
Aitor Azpiroz's user avatar
3 votes
3 answers
1k views

Where are Libre Office thumbnails stored?

I'd like to delete a thumbnail of a Libre Office spreadsheet that contains some sensitive info. I've encrypted the spreadsheet and deleted the original, but LO continues to display a thumbnail graphic ...
Ken's user avatar
  • 121
1 vote
1 answer
468 views

Ubuntu 17.10 - Problems displaying thumbnails in Nautilus in XOrg

Hi just installed a fresh 17.10, gnome shell. Wayland was not working out for me (it was slower than xorg and a couple of important apps weren't running well on it) so I switched back to XOrg session. ...
thebunnyrules's user avatar
1 vote
1 answer
1k views

Video thumbnails in 16.04

I have 16.04 + Unity. Nautilus does not show video thumbnails for me. Is it the default behaviour of Nautilus ? Any option to enable thumbnails for videos ? Thanks.
user227495's user avatar
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5 votes
1 answer
10k views

Ubuntu 16.04 LTS does not display .jpg files

I have a series of .jpg files that do not show on Ubuntu Image Viewer or as thumbnails. These are perfectly ok on Windows 32 and 64 and on Mac OS. Strangely one very old .jpg file does display ...
collectordave's user avatar
1 vote
1 answer
3k views

No mp3 thumbnail (album art cover) when using ffmpegthumbnailer, in Ubuntu Gnome 17.04

I use Nemo as my default file browser and I want to use ffmpegthumbnailer to generate thumbnails. So I installed ffmpegthumbnailer and edited the totem.thumbnailer file in /usr/share/thumbnailers and ...
Panos Ts.'s user avatar
2 votes
1 answer
1k views

Is there a way to force thumbnail generation via a script

I am currently using PCManFM, but I believe that other file managers are the same. When I open up the directory, large files, that are over the specified size limit are not shown as thumbnails, but ...
v010dya's user avatar
  • 1,472
1 vote
0 answers
658 views

Audio preview in Dolphin Kubuntu 17.04

Dolphin is not displaying previews for audio files in Kubuntu 17.04. Acconding to https://askubuntu.com/a/918342/35245 : Audio thumbnailer is part of the kio-extras. And according to https://...
Antonio Sánchez's user avatar
0 votes
1 answer
631 views

Not showing Dolphin's Image Thumbnails on Xubuntu 17.04

This is a freshly installed Xubuntu 17.04, since Thunar don't let me do some things I installed Dolphin but it is not showing thumbnails of pictures. Other help on internet is about KDE. What can I do?...
Aciago's user avatar
  • 1
5 votes
2 answers
1k views

Can I resize multiple images in a directory to 160x160 at once? [duplicate]

I want to resize multiple images that are stored in multiple sub folders in a directory. And I want to replace those images with resized ones by deleting the original ones Why? I’ve folder icons for ...
Sumeet Deshmukh's user avatar
9 votes
2 answers
3k views

Can I make nautilus show book covers as thumbnails for Epub files?

The Problem Can I make nautilus show thumbnails of book covers for files in .epub format? It shows thumbnails for pdf files but not .epub. Is this achievable by adding a thumbnailer? Each of these ....
Sumeet Deshmukh's user avatar
2 votes
0 answers
83 views

Green Thumbnails in Ubuntu Gnome 17.04 [duplicate]

My video (.mkv) thumbnails are green (or monochromatic)? This didn't solve my problem, the situation is exactly the same, it used to work in 16.10 but it's not working now. Is this a bug should I ...
Girish Dave's user avatar
0 votes
1 answer
98 views

How to set default folder view to “list”, in Ubuntu

How to set default folder view to “list”, in Ubuntu, with no icons, slows big directories, such as my photos? Thanks in advance.
Don Lopez's user avatar
7 votes
3 answers
4k views

My video (.mkv) thumbnails are green (or monochromatic)?

When I installed Ubuntu Gnome 17.04 thumbnails for .mkv were not showing up at all, Then it automatically got fixed, now it's generating the Thumbnails but as weird as it may sound, they're all green (...
Sumeet Deshmukh's user avatar
1 vote
1 answer
1k views

Mkv thumbnails are not generating at all

After updating to Ubuntu 17.04 my .mkv files aren't showing any thumbnails What have I tried so far? Installed ubuntu-restricted-extras that didn't work. Rebooted after installing ubuntu-restricted-...
Sumeet Deshmukh's user avatar
0 votes
0 answers
467 views

Thumbnails not showing Pictures

This is Ubuntu 14.04. I have connected my phone (One Plus). Instead of the thumbnails like these "with JPG written on black background", I want actual thumbnails with pictures.
Sandesh Yadav's user avatar
0 votes
0 answers
931 views

How to enable thumbnail previews in Nautilus in Xubuntu 16.04?

I want to use Nautilus as default file manager instead of Thunar but it does not generate thumbnails for new media files that I add. How do I enable this behaviour? Also how do I access preferences/...
Ankit's user avatar
  • 153
1 vote
1 answer
802 views

Thumbnails do not update after modifying jpg file with Gimp

I regularly modify jpg images using GIMP (currently in version 2.8). However, the thumbnail in Nautilus (currently in version 3.14.3) does not change/update after the modification. I find this ...
Juan Antonio's user avatar
  • 1,572
3 votes
1 answer
4k views

How to thumbnail/preview doc, docx, odt and other document files in dolphin?

I was searching some places but couldn't find any solution as to how preview document files like odt, ods, doc, docx in dolphin. Is there any solution to this? I would actually need this because I ...
user634093's user avatar
4 votes
1 answer
3k views

How to get nautilus to show file previews thumbnails for office files?

LibreOffice files have thumbnails, Microsoft Office files don't. Sometimes I get sent Microsoft Office files and they come with a thumbnail but as soon as I save the file in LibreOffice, nautilus ...
riscos3's user avatar
  • 221
1 vote
1 answer
589 views

Make thumbnails persistent for the current session only, do not store them on the disk

I don't want thumbnails stored on my disk (e.g. for privacy reasons), but completely disabling thumbnailing (by denying write access to ~/.cache/thumbnails) also replaces all preview icons with those ...
Byte Commander's user avatar
  • 107k
1 vote
2 answers
281 views

Nautilus odt thumbnails gone after BleachBit

Nautilus used to generate thumbnails for .odt documents before I cleaned the pc with BleachBit and now I can't get it to work again. Any ideas? Here's what I cleaned:
Rtsne42's user avatar
  • 1,207
1 vote
1 answer
719 views

Getting thumbnails for .MTS (AVCHD) video files in Caja?

In Caja (MATE's file manager), I'm not getting thumbnails for .MTS video files (From my AVCHD camera). However, if I rename them to a more common extension, such as .mp4, thumbnails for them are ...
Jonas Czech's user avatar
  • 4,017
3 votes
1 answer
929 views

Xubuntu 16.04 doesn't show mp3 thumbnails (album art picture) - the rest of the thumbnails are ok!

I have xubuntu 16.04 and mp3 thumbnails don't work. I already deleted .thumbnails and changed permission for thumbnails folder and didn't seem to solve the problem.help please.
tr64's user avatar
  • 31
11 votes
3 answers
8k views

How to make Thunar regenerate thumbnails?

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 ...
ipse lute's user avatar
  • 2,574
1 vote
0 answers
161 views

Many thumbnails fail to be generated in Nautilus, but OK in Dolphin with ffmpegthumbs

It happens to lots of .wmv extension files, this is how it looks like:
JulianLai's user avatar
  • 1,572
0 votes
1 answer
1k views

There is no video thumbnail for Dolphin file manager on Ubuntu 16.04 [duplicate]

I have installed "ffmpegthumbs", "mplayerthumbs", "kffmpegthumbnailer", "kio-extras", and set up everything for Dolphin which used to work on OpenSUSE 42.1, but there is still no thumbnail for videos, ...
JulianLai's user avatar
  • 1,572
19 votes
3 answers
5k views

How to set the first picture of every folder as its folder icon?

If there are pictures in folder A, B, C.....Z, how do I automatically set the first picture in each of these folders as its folder icon? Is there a way like a script or something else?
JulianLai's user avatar
  • 1,572
3 votes
1 answer
3k views

Xubuntu 16.04 - Thunar doesn't show most of media thumbnails

Thunar (1.6.10-2ubuntu1) only shows images edited with gimp. Even the screenshots have no thumbnails. I have installed tumbler and tumbler-plugins-extra packages. I have reistalled thunar. I have ...
GeoMint's user avatar
  • 785
2 votes
2 answers
4k views

Thunar doesn't display thumbnails for most files

On Xubuntu 14.04 Thunar doesn't show thumbnails for most files. For example in my wallpapers folder only two .png files have thumbnails while the rest of them don't have thumbnails, similar for other ...
09eragera09's user avatar
4 votes
1 answer
1k views

Open/Upload file Dialogue - make file preview larger

I work in Chrome a lot and do a lot of meme type image uploads from Chrome for a Page that I admin. Frequently, I can't read the text on the image previews I'm looking at in the upload dialogue box. ...
Hath'alud LaFox's user avatar
1 vote
0 answers
168 views

can't disable thumbnail preview with dconf-editor, Ubuntu 14.04

I want to disable thumbnail previews for 'text/x-python', 'text/plain', 'application/python', so I can get the cute blue and yellow snakes back as my icon. But somehow it refuses to respond to dconf ...
Yen-Yung Chang's user avatar
1 vote
0 answers
219 views

Why Evince is not generating thumbnails for .ai files in CDs or Pendrives?

Recently, I discover that Evince (Ubuntu Document Viewer) could display Adobe Ilustrator files from old Clipart CDs (version 3 or less) After appending these mime types: application/illustrator;image/...
capellan2000's user avatar
1 vote
1 answer
1k views

Can't generate thumbnails from some mkv files

I've been using Ubuntu for a time but still not that professional one. My problem -that I've been stuck with last two days- is I downloaded an MKV video with HEVC stream which is unknown to VLC, but ...
Robin's user avatar
  • 11
2 votes
0 answers
371 views

Lubuntu - How to disable thumbnails for videos and PDFs

How can I disable thumbnails for video files and PDFs in Lubuntu 16.04?
Frank John's user avatar
7 votes
1 answer
3k views

Dolphin's "Show previews for" blank

I installed Ubuntu 16.04 and installed dolphin (15.12.3) + FFMpegThumbs so that I can see thumbnails of videos but when I went to the previews the box was just blank.
jimbob1986's user avatar
3 votes
1 answer
2k views

How to enable thumbnail preview for text files in Nautilus

I have many small text files, and want Nautilus to show previews in the icon thumbnail. Left is my current situation, right is what I want. How to achieve that on Ubuntu 15.10? My current Nautilus ...
Nicolas Raoul's user avatar
0 votes
1 answer
345 views

Retrieve thumbnail for a given file

Is there a command to get the (possibly cached) thumbnail for a given file? As in, the same way the file manager does it? Answers can be for gnome, lxde, kde, it doesn't matter. Props for a command ...
iPherian's user avatar
  • 133
4 votes
1 answer
3k views

PDF thumbnails are missing in Dolphin

I can't find out how to enable Pdf previews in Dolphin 15.08.2, is it possible in this new version? kdegraphics-thumbnailers is installed and uptodate
Dylan's user avatar
  • 51