1

Please do not echo the noise of similar questions and answers. None seem to meet my need.

What is the minimum set of config.txt commands that I need to ensure that my Pi 3B+ outputs to composite when it powers up?

For example...

# First Video Display
framebuffer_priority=3

# Normal NTSC
sdtv_mode=0

# Disable or Enable HDMI
hdmi_ignore_hotplug=1  # Disable HDMI (for Composite)

# 4:3 aspect ratio
sdtv_aspect=1

Those commands don't seem to work for me. Does the order matter? What will do what I need?

2
  • have you tried raspberrypi.stackexchange.com/questions/41796/… Jul 17 '20 at 4:04
  • If there's no HDMI connected then your RPi3B+ automatically boots to SDTV. It defaults to state 0x40000 [NTSC 4:3], 720x480 @ 60.00Hz, interlaced so PAL users may need some tweaks in /boot/config.txt.
    – Dougie
    Jul 17 '20 at 8:51
1

Make sure that hdmi_force_hotplug= is either 0 or commented out. You shouldn't need anything else, just don't plug in HDMI and it'll boot to composite mode.

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