I want to reduce the size of icons on my ubuntu desktop/All the icons are too big and i am using just 12.1 inch laptop so its looks too horrible.
two solutions i know of -
right click the icon, select Stretch Icon...
Open a terminal
type nautilus (this open a file browser)
Edit -> Preferences -> Icon View Defaults and select the size you like
How can I reduce the size of my desktop icons if the video resolution is already on the highest setting?
If you click a blank bit of the desktop, hold down the Ctrl key and scroll down using the mouse wheel, you can scale down the desktop icons until they're almost non-existent.
Ctrl + scroll wheel works to zoom in most applications (browser, MS Office, Windows Explorer, etc.).
Right click the desktop > View > Small Icons (Classic on Vista). That is the smallest icon size you can have.
If these sizes are still not small (or big) enough for you, then you can hold down Ctrl whilst scrolling the Scroll Wheel to change it to the exact size you want.
I haven't tested this but I would've thought this was a registry setting, according to google it is :)
"Shell Icon Size"="36"
The value '36' is the default (medium size) if I'm correct, a smaller value means smaller icons.
Note: Fiddling with the registry can be dangerous so only use this if the default 'small/medium/large/extra large' don't suffice.