How to: Change screen resolution of Raspberry Pi

Solution 1

sudo nano /boot/config.txt

Uncomment "disable_overscan=1"

overscan_left=24
overscan_right=24
Overscan_top=10
Overscan_bottom=24

Framebuffer_width=480
Framebuffer_height=320

Sdtv_mode=2
Sdtv_aspect=2

Solution 2

sudo raspi-config

Go to: >Advanced Option > Resolution > set resolution based on your screen resolution.

reboot