How can I know whether the monitor is on or off if X is not running, and without appealing to /proc/acpi/video? The latter isn't available from my kernel.If X is running it's just a matter of  $ DISPLAY=:0 xset -q 2>/dev/null| grep ^\s*Monitor isBut what if X is not running?
Whether monitor is off without appealing to X or /proc
console;monitors