23 Mar 2015, 10:26

If you just want to use recalbox with the composite output, here is my file /boot/config.txt:

# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1

disable_overscan=0

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# comment to get jack audio
#hdmi_drive=2

#config_hdmi_boost=0
#hdmi_force_hotplug=0

# uncomment to ignore hdmi plug
hdmi_ignore_hotplug=1

# uncomment for composite PAL
sdtv_mode=2

# Overclock
gpu_mem=512

avoid_safe_mode=1

kernel=zImage

# NOOBS Auto-generated Settings:
#hdmi_force_hotplug=1
#config_hdmi_boost=4
#overscan_left=24
#overscan_right=24
#overscan_top=16
#overscan_bottom=16
disable_overscan=0
overscan_scale=1

You have to comment some lines (with hdmi mention).