trying to turn off LCD and everything points to using:
echo 0 > /sys/class/backlight/rpi_backlight/bl_power
echo 1 > /sys/class/backlight/rpi_backlight/bl_power
but i get the error "file/directory doesn't exist"
I have the /sys/class/backlight dir but it is empty, also cannot create files/folder within... even with sudo?
any help would be helpful!