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

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8
votes
2answers
128 views
+50

Generate thumbnails for text?

I need to generate thumbnails for some text files. Obviously the system somehow has the ability to do exactly this (see the screen shot). Is there any way I can access these images and just copy them ...
5
votes
1answer
55 views

Different nautilus thumbnails rendering for text files

I have Ubuntu 14.04 Gnome edition on both my laptop and the desktop; both are up-to-date but they have a different past-history of installations and upgrades. Now, text-type thumbnails are different ...
1
vote
0answers
118 views

Why did my Nautilus stop displaying thumbnails for text files?

I've chosen to have plain-text files displayed with thumbnails in Nautilus. However, this has suddenly stopped functioning the other day (after upgrading to Ubuntu 14.04 I guess). But there's no such ...
2
votes
1answer
2k views

LXDE: PCManFM Thumbnails of images > 2MB are not shown

Im using LXDE, with PCManFM but images bigger than 2MB are just shown with image-symbol and not with the thumbnail. How Can I change that behavior?
27
votes
4answers
5k views

How can I instruct Nautilus to pre-generate thumbnails?

I have a large library of PDF documents (papers, lectures, handouts) that I want to be able to quickly navigate through. For that I need thumbnails. At the same time however, I see that the ...
2
votes
2answers
39 views

How to generate thumbnails in advance (pdf mostly) [duplicate]

I have a rather large set of documents (150 GiB ~5000 files) and would like to know how to pre-generate thumbnails, preferably from the command line, so that when I navigate to the folder, I don't ...
1
vote
1answer
1k views

Nautilus thumbnails don't appear in 14.04

This is a fresh install of Ubuntu 14.04. In Nautilus > Edit > Preferences > Preview I have "Show thumbnails" as "Local files only" and "Only for files smaller than" 100MB. Changing those settings ...
14
votes
5answers
3k views

How do I make Shotwell regenerate all the thumbnails?

For some unknown reason all thumbnails are lost in my Shotwell, instead all icons are grey. The images themselves are all okay and I can open them all in Shotwell. There are only empty folders in ...
6
votes
2answers
2k views

Why doesn't Nemo preview thumbnails?

I have a problem with thumbnails on my Ubuntu 12.04 LTS 32-bit system with Cinnamon 2.0.14 DE and Nemo 2.08. I have tried removing the ~/.thumbnails directory but it is not working for me. This is ...
0
votes
2answers
29 views

Thumbnail Creation Cause 100%CPU

Opening folder with .jpg images or .mp4 or .mkv etc. causes 100% cpu utilization. Ubuntu 14.04, Lenovo T540P. I do not want thumbnails written constantly on my SSD. Using dconf editor I selected ...
2
votes
1answer
843 views

Some videos have no thumbnail?

I just downloaded a video series and opened the videos folder to find that some of the videos have thumbnails and some do not. How can I force the others to generate thumbnails? I have tried playing ...
0
votes
1answer
100 views

MPEG2 Transport Stream (MTS) Thumbnails

I have one of these Sony handycams that produce MTS video files. Openshot can now edit them and MPlayer2 can play them, which is fantastic. But I have trouble knowing which is which in the file ...
2
votes
2answers
29 views

Is there any way to create thumbnails in the Trash folder?

By default these do not seem to be generated. I don't know if I can force the system to do it as they would be very handy to identify a wrongly deleted picture. I'm using Ubuntu 14.04.1 LTS
1
vote
0answers
27 views

Custom thumnailers not working in trusty

For some reason, dconf editor is no longer able to customise thumnailers as explained here. I want to exclude pdfs and plain text thumbnails. I add ['application/pdf','text/plain'] to org > gnome ...
1
vote
0answers
22 views

How to change preview image for file from command line? [duplicate]

If I open the properties window for some random file. If I click on the file icon in that window I can select a new preview image (thumbnail) for the file. This preview will be displayed in the file ...
1
vote
4answers
4k views

How to make videos show thumbnail in ubuntu 13.04?

I have ubuntu 13.04 and many of my videos do not show thumbnails whereas some do, they are all Mp4 formats including the ones that do show thumbnails. Is there a way to make all videos show ...
0
votes
1answer
52 views

how to stop saving thumbnails in ~/.thumbnails

file manager keeps thumbnails in ~/.thumbnails even after the original photo is deleted. it's really annoying and i feel like it's insecure if some one can watch a photo that I've deleted. i want this ...
11
votes
2answers
4k views

How to stop Nautilus from creating thumbnails of specific file types?

I'm trying to stop Nautilus from creating thumbnails of PDF files. In another thread on 'Ubuntu forums' someone said to open gconf-editor and disable the PDF entry in the '/desktop/gnome/thumbnailers' ...
0
votes
0answers
34 views

Incorrect orientation of thumbnails in Nautilus (“Files”) using 14.04 [duplicate]

In Files 3.10.1 (formerly Nautilus) I display thumbnails when viewing a folder of images. If the orientation of some images is wrong (i.e. landscape format displaying as portrait, or vice versa) I ...
0
votes
1answer
33 views

Nautilus keeps re-creating thumbnails

I'm have a thumbnail problem on my Ubuntu 12.04 machine where my thumbnails won't stay deleted. I've gone through the following steps in an unsuccessful effort to permanently delete old thumbnails: ...
4
votes
2answers
3k views

Show me only picture thumbnails

Is it possible in nautilus that it shows thumbnails only for pictures and for all others like videos, pdfs, etc thumbnails are disabled?
0
votes
1answer
46 views

Is There A Way To Disable thumbnails on Ubuntu 12.04?

Is there a way to disable thumbnails from being made (captured) on Ubuntu 12.04? I'm referring in: ~/home/xxxx/.thumbnails Thanks in advance.
1
vote
2answers
43 views

Permissions for thumbnailer on device

I'm developing an application for U-Touch that gets a thumbnail from a video in C++ code using libthumbnailer system library. The app does the thumbnailing perfectly in my computer, but when i try to ...
1
vote
1answer
98 views

Can I safely remove tumbler in Xubuntu 14.04?

I have a similar problem to the one under this question: What is tumblerd? That program is one of the most CPU hungry I ever seen in Xubuntu/Xfce. I do not really need thumbnails preview and I might ...
4
votes
2answers
700 views

What rendering engine does Nautilus use to show HTML previews/thumbnails?

I just noticed that HTML files with CSS transforms on elements show with the CSS transforms within the thumbnails on Nautilus. So what rendering engine does Nautilus use to generate the thumbnails for ...
1
vote
0answers
141 views

How to manually generate video thumbnails?

I'm using Ubuntu 14.04 and I want to ask how to generate video thumbnaiils manually? In some videos, the generated thumbnail is the logo of the company (in the very beggining of the video), and not ...
4
votes
1answer
542 views

How to disable thumbnail generation?

For privacy and security reasons I want to disable the generation of any thumbnails in the ~/.cache/thumbnails folder (using Ubuntu 14.04 LTS). I already tried this (without success): In the ...
12
votes
2answers
2k views

How large can Nautilus's thumbnail cache grow?

Nautilus's thumbnail cache in ~/.thumbnails has grown to several hundred megabytes. Do I need to be concerned about unrestricted growth of this in the long term, or is its size automatically managed ...
0
votes
0answers
21 views

How often is the thumbnail cache cleared? [duplicate]

I'm not sure which application is the culprit (Nautilus, with the help of another library, I would assume), but if you take a look at ~/.cache/thumbnails you will notice that Ubuntu stores the ...
6
votes
2answers
2k views

What additional thumbnailers are available and how do I install them?

Question: Ubuntu's file manager, Nautilus, comes with a wide support for file previews. These thumbnails are handled by helper programs called thumbnailers. The number of thumbnailers that come ...
2
votes
1answer
96 views

How can I exclude specific folders from thumbnail generation?

So I have a folder I would like Nautilus to skip generating thumbnails for because there are too many files and too many changes to it. I saw that we can disable thumbnails for a specific filetype ...
22
votes
3answers
8k views

What is safe to exclude for a full system backup?

I'm looking for a list which paths/files are safe to exclude for a full system/home backup. Considering that I have a list of installed packages. /home/*/.thumbnails /home/*/.cache ...
3
votes
2answers
90 views

An independently browseable database of large thumbnails?

I've googled about this for a while but to no avail. I have a huge amount of photos stored in several media and backed up in a cloud. Shotwell generates pretty large thumbnails which are quite good ...
0
votes
0answers
81 views

Thumbnails while searching folders on Xubuntu?

How can I see the thumbnails of my picture while browsing folders? When I triy to upload a picture I can only see their names. I'm using Xubuntu 14.04 right now.
1
vote
0answers
215 views

Disable text file previews/thumbnails in nautilus

Nautilus in 14.04 generates "thumbnails" of all text files in that it shows them all as the same, blank text icon. If I turn off thumbnails altogether, then it displays correct icons, but I need ...
0
votes
1answer
120 views

link between photo and thumb in shotwell (v 12, db schema 15, ubuntu 12.04)

How do I find the corresponding thumb to a photo in shotwell, schema version 15? The thumb files seem to have hex numbering that doesn't seem to correspond to anything in the photo table as far as I ...
5
votes
1answer
402 views

Is it possible to preview arbitrary formats in Nautilus?

I recently found out that Nautilus (Ubuntu 12.04 at least) can show thumbnails of files of non-image formats, for example (data grapher) grace files (.agr) shows a small version of the graph contained ...
2
votes
0answers
15 views

How to disable thumbnail preview for text file [duplicate]

I am using Ubuntu 14.04 but I miss one great feature of enabling and disabling preview for text file, so is their any way to do so?
1
vote
1answer
836 views

How do I enable thumbnails for 'webm' files?

I have thumbnails for every other file type just not .webm. Is there any way to enable them and if so, how would I do that?
0
votes
1answer
107 views

Disable thumbnails on Xubuntu

I am trying to obtain the highest performance from my Xubuntu system, disabling anything that I don't need. How can I disable thumbnails on Xubuntu?
4
votes
7answers
9k views

Why I can't see the thumbnails in Nautilus?

Problem Loading Thumb Previews: This started to happen after upgraded Ubuntu from 12.04 to 12.10.
6
votes
2answers
323 views

How to regenerate a specific thumbnail in Nautilus?

Sometimes I crop PDFs in order to have a one-page reading instead of a scanned two pages. However, nautilus keeps an old thumbnail showing the former front page. I know that I can delete the hidden ...
1
vote
2answers
132 views

Thumbnail Previewer not working for Large Images

I have over 500 images downloaded from Shutterstock so they are very large images, some over 10MB. Ubuntu will not show the thumbnail for anything above that file size. Is this a compiz settings issue ...
0
votes
0answers
33 views

How save thumbnail listing of images and videos?

How save thumbnail listing of images and videos? For example, the default file/dir navigator (Nautilus, I think) shows a tiled thumbnail view. Just can't find a way to save the entire thumbnail set ...
3
votes
4answers
3k views

Nautilus not generating thumbnails in 13.10

Like the title says, Nautilus is not generating thumbnails for any file types (pictures, documents, pdf, etc) after a clean install of 13.10. I have checked the preferences and it is set to always ...
0
votes
2answers
532 views

Photo viewer / File Manager thumbnails / photos

I started working @ a recovery data company and sometimes I have to manualy go through all the photo's and delete the ones that are not 100% correct. Something the thumbnail shows no problem with ...
0
votes
1answer
135 views

Failed to create thumbnail error fills gnome-session.log.1 to 50 GB!

Yesterday I got a message that my /home partition was full so I moved a 10 gb folder to a external hdd. now I got the message again so I did the Disc Usage Analyzer, and I found a 50 GB file in ...
1
vote
0answers
112 views

How do I get thumbnails when viewing — and particularly uploading - photo files

Coming from the Windows world, I am used to being about to change the "View" when viewing files, to show Thumbnails of pictures for instance or to just show file names and details like size and ...
1
vote
0answers
142 views

What are good alternatives to tumbler?

It has been a month since I switched to Xubuntu and tumbler always makes my life harder: killing tumblerd just for ejecting external storages, and making my computer slow enough to become unusable. ...
0
votes
1answer
208 views

file-manager and ffmpegthumbnailer

I have PCManFM installed on xubuntu along with ffmpegthumbnailer. Everything works fine except for some configurations like video border, some file formats like flv and so on. How could I change those ...