10 May 2021, 08:51

@jef_lord I also added this option:

hdmi_ignore_hotplug=1

this one forces the CRT output as described here:

hdmi_ignore_hotplug

Setting hdmi_ignore_hotplug to 1 pretends that the HDMI hotplug signal is not asserted, so it appears that a HDMI display is not attached. In other words, composite output mode will be used, even if an HDMI monitor is detected.