Unfortunately there is no easy way directly in Nautilus itself.
You can however use dconf-editor:
sudo apt-get install dconf-editor
dconf-editor
Now navigate to org->gnome->nautilus->icon-view. Try setting bigger values in the thumbnail-size field. 128 worked for me. Don't forget to restart nautilus afterwards:
killall nautilus
It's not a perfect solution as it changes only the size and spacing of pictures/videos thumbnails. Regular icons are unaffected, as their size is by default 48px.
Unfortunately there is no easy way directly in Nautilus itself. You can however use
dconf-editor
:Now navigate to org->gnome->nautilus->icon-view. Try setting bigger values in the thumbnail-size field. 128 worked for me. Don't forget to restart nautilus afterwards:
It's not a perfect solution as it changes only the size and spacing of pictures/videos thumbnails. Regular icons are unaffected, as their size is by default 48px.
Install Ubuntu Tweak Tools. Navigate to Tweaks tab. Tweaks > System/File Manager > Thumbnail icon size > 128 or 150 (default is 64)