Open the SD in your computer. Open the file config.txt . You can edit the file with notepad++ freeware. With normal notepad you might make errors.
- To enable the sound of raspberry pi zero we need to change the default GPIO (of GPIO 13 and 18) of the raspberry pi zero. To do that at the end of that file, add this line:
dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4
- Modify these lines to adapt to the display:
# uncomment the following to adjust overscan. Use positive numbers if console # goes off screen, and negative if there is too much border
overscan_left=-6
overscan_right=-6
overscan_top=-15
overscan_bottom=-15# uncomment to force a console size. By default it will be display’s size minus # overscan.
framebuffer_width=320
framebuffer_height=240