29 Sept 2023, 10:05

@madbrain This Pi firmware issue thread suggests inserting into /boot/cmdline.txt:

video=Composite-1:720x480@60,margin_left=32,margin_right=32,margin_top=32,margin_bottom=32

Replace the 720x480@60 with 720x576@50 if you're using PAL, and the margin values as you see fit.