How can I resize the desktop icons?
They are too big. I tried to use the zoom out option in nautilus, but it didn't work
Unfortunately, this is a limitation of
nautilus with the minimum size being
48px hard-coded within their software. The setting that control this is:
gsettings range org.gnome.nautilus.icon-view default-zoom-level
You can see by running this command it's already set to small, so it can't get smaller:
gsettings get org.gnome.nautilus.icon-view default-zoom-level
In order to get smaller icons you would have to actually recompile the code, at which point you basically won't be getting updates for
It's also worth mentioning that if customization is something you desire the Kubuntu flavor of Ubuntu based on KDE may interest you.
Following the above hints with the gsettings command I edited the command line to:
gsettings set org.gnome.nautilus.icon-view default-zoom-level standard
And my desktop icons popped back to the correct size.