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 in the two machines, and I am unable to find where the difference is. This post: What rendering engine does Nautilus use to show HTML previews/thumbnails? seems obsolete (no entries in
dconf for them), and Generate thumbnails for text? would help (but it's unanswered).
Look at this composed shot:
In the laptop the thumbnails have a small excerpt of the content of the file (the real content) while in my desktop they are simply blank.
I dug a bit around but I can't find which option/package is responsible of the laptop behavior (which I do prefer, by the way).
How can I enable the "text snapshot" in thumbnails? (And if they had syntax highlighting, like in the linked question, it would be great).