Once I installed Rasbian in my Raspberry Pi 2 there were black bars on the top, bottom, left and right of the screen.
After searching I found that in order to remove them you have to edit the config file
/boot/config.txt. In it you should uncomment the line
disable_overscan=1 and then comment all the lines that mention
overscan as well as change the line
My question is why doesn't Raspberry Pi 2 by default using the full resolution of the screen and you have to "fix" it yourself manually? Also is it safe to do so or can this fix cause any problems?