Baz wrote:
That doesn't achieve the same thing as the backlight of the monitor is
still powered up. When it is in energy saving the power light flashes
and the backlight is off.


Your PC determines the sleep mode, not your monitor. Blinking blue
lights on Samsung monitors is stand-by. No different from off other than
the blinky light. It takes the exact amount of time to get an image from
off or stand-by.

Put your PC in sleep/hibernate. Then you will enjoy the blinky blue light.