Raspberry Pi makes use of the full size of your screen!

Have you ever struggled of how to use the whole screen / display with your raspberry pi?

Here is the solution to use the full screens size:

sudo nano /boot/config.txt

now use Ctrl + W and type disable_overscan
if you find this line, uncomment it so that it looks like

 disable_overscan=1 

then search for overscan_ top,left,right,bottom and comment these like

#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16 

Afterwards save your save your changes with Ctr + X and hit enter.

The changes will take effect if you restart your X Server or just to be on the safe side,
quickly reboot your device.