Getting EDID of your monitor on mainline Linux for Unsupported Resolutions or Black Screen
The EDID of your monitor can be found in the file here: /sys/devices/platform/soc/d0100000.vpu/drm/card0/card0-HDMI-A-1/edid
It is in binary format so you can't
cat it to console. You can use
This is useful if you are unable to get video output on your monitor. You can decode your monitor's EDID via get-edid in the read-edid package.
sudo apt-get install -y read-edid
parse-edid < /sys/devices/platform/soc/d0100000.vpu/drm/card0/card0-HDMI-A-1/edid