If you’re getting this message on your monitor then you might not be able to turn your screen off. Here is how to fix it quickly and easily.
Many users have reported this problem with HP monitors and I’ve had a few in my shop over the past few years.
Disable the monitor’s Power Button Lockout Function by pressing and holding the power button for 10 seconds.
If the first fix doesn’t work then you can do what is called a factory monitor reset.
Simply unplug the monitor from power (unplug from the wall). Then press and hold the power button for 40 seconds.
Then plug the monitor back into the wall and turn it on.