I have two RPi 5 boards hooked to an HDMI KVM. When I reboot the RPi boards, one of the boards will not get the EDID data and hence it doesn't produce video.
I'm struggling to come up with a way to patch the config.txt file to work around this. I've tried adding lines like:
hdmi_edid_filename=/boot/firmware/force.edid.viewsonic
hdmi_force_hotplug=1
That appears to do something, because if I cat /sys/class/drm/card1-HDMI-A-1/edid then I do get the expected EDID data, but the monitor still doesn't see any video.
How can I get the Pi 5 to put out HDMI video without a monitor connected at boot time?
I'm struggling to come up with a way to patch the config.txt file to work around this. I've tried adding lines like:
hdmi_edid_filename=/boot/firmware/force.edid.viewsonic
hdmi_force_hotplug=1
That appears to do something, because if I cat /sys/class/drm/card1-HDMI-A-1/edid then I do get the expected EDID data, but the monitor still doesn't see any video.
How can I get the Pi 5 to put out HDMI video without a monitor connected at boot time?
Statistics: Posted by stevenfalco — Wed Feb 21, 2024 7:59 pm