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Why Won’t My HP Monitor Turn On?

As an exasperated owner of an HP monitor, I have been trying to figure out why it won’t turn on. After hours of research, testing, and troubleshooting, I am here to share my experience and the solutions I have found that might help you get your HP monitor up and running again. In this blog post, I will discuss the possible causes of why your HP monitor won’t turn on, as well as the steps you can take to try and resolve the issue.

There are a couple of possibilities. They include a power connection problem, hardware overheating, old software, and worn-out components.

These causes can be daunting, especially if you’re not a technophile. But don’t worry. This article will help you get through the step-by-step process of finding out the cause of the problem and its counterpart solution.

Power Connection ProblemLoose connections or faulty power cords can cause erratic electricity supply or no power at all.Check the electric outlet and ensure the power cord is securely connected. Inspect the condition of the power cord, and try connecting it to a different socket. If using a UPS or AVR, check their fuses and replace if necessary.
Hardware OverheatingOverheating can occur due to dust, poor room ventilation, or prolonged uninterrupted use. Overheating can cause your monitor to shut off as a self-preservation mechanism.Make sure your computer is placed in a well-ventilated area. Clean your device of dust regularly. Adjust the speed of your CPU and GPU fans using fan control software to help cool down your computer.
Old Software/DriversOutdated drivers can cause compatibility issues, leading to monitor errors and malfunctions.Update your HP monitor drivers by going to Device Manager > Monitors > Right-click and choose Update Driver > Search Automatically for Drivers.
Worn-Out ComponentsYour monitor’s components may have reached the end of their useful life, leading to issues like busted backlights, dead pixels, or corroded circuits and wires.If troubleshooting other issues doesn’t resolve the problem, it may be time to consider replacing your HP monitor or seeking professional help for repair.

Possible Reasons Why Your HP Monitor Won’t Turn On

We narrowed them down into four, and they’re the following:

  1. Power Connection Problem

The power supply is the first thing to look into when the screen goes black. 

  • Check the electric outlet where the power cord of your monitor is connected. Does it securely hold the pins? 

When the socket can’t firmly keep the power cable in place, there’s always the tendency for an erratic supply of electricity. 

  • Is your HP monitor connected to UPS (Uninterruptible Power Supply) or AVR (Automatic Voltage Regulator)? Check the fuse of these devices. If it’s busted, it needs replacement.
  • Lastly, inspect the condition of the power cord. It could be bent or stretched, breaking the internal wires inside its insulation enclosure. 

To do this, find another socket where you can plug the cable and turn on the monitor. Did the power light flash? If it did, it means your power cable is ok.

  1. Hardware Overheating

Overheating is always a bad thing (even for bread toasters). So when your monitor shuts off voluntarily, it’s a self-preservation mechanism before all its internal circuitry gets fried. 

Various things could lead to a sweltering monitor. These include dust, poor room ventilation, and prolonged uninterrupted use.

There are indications to notice when your monitor is overheating. A few of them are:

  • Pixel patterns start to emerge.
  • The display on the screen glitches.
  • Interval series of blackouts (your monitor turns on and off by itself).
  • The surface is rather too hot to touch.

When you detect these signs, immediately turn off your computer and unplug the power cords.

Other hardware also overheats, apart from the monitor that’s causing your screen to blackout. 

Central Processing Unit

Do you notice at times that your CPU cooling system becomes too noisy? The noise comes from the CPU fan that works harder to vent out the heat from the computer processor. 

When the CPU fan is over-actively working while your monitor shuts down, the CPU is overheating.

Graphics Processing Unit

GPU is another piece of computer hardware that could cause a screen blackout when it overheats. 

  1. Old Software/Drivers

When drivers become outdated, their codes tend to become corrupted causing compatibility issues. In effect, your HP monitor is susceptible to error and will no longer operate as it used to.

  1. Worn-Out Components

Your monitor and the parts that compose it succumb to the 2nd law of thermodynamics. It has come to the end of its useful life.

Perhaps the backlights of the screen are busted, pixels are dead (they won’t turn on for good), or the circuits and wires have become corroded.

How to Fix Your HP Monitor That Won’t Turn On

You don’t need to be tech-savvy to solve your monitor blackout issues. Follow these points below to see your HP monitor turn on again.

  1. Secure the Power Source

Make sure the electric socket tightly holds the power cord of your monitor. If UPS or AVR powers your monitor, check the fuse of these devices and make sure it’s not broken.

Lastly, confirm that the integrity of the electric cord is sound.

  1. Keeping Your Computer Cool

The best way to keep your computer from overheating is to place it in an air-conditioned space. If this isn’t a doable option for you, ensure that the ventilation outlets of your CPU are clear. 

If you suspect the fans in your CPU and GPU are a bit slow while your computer runs multiple processes, adjust their speed using fan control software to help cool down your computer.

Last but not least; regularly cleaning your device of dust is just as vital to keep it cool.

  1. Install updates to your software/drivers

Keeping your software and drivers updated is a primary defense against monitor blackouts and other performance issues.

To update the driver of your HP monitor:

  • Go to the start icon (window emblem) and type Device Manager
  • Select Device Manager and press enter
  • Find Monitors and double click using the left mouse button 
  • Left-click using the right button of the mouse and choose Update Driver
  • Continue with Search Automatically for Drivers
  • Wait for the notification, then close the tab


An HP monitor blacking out is not an intimidating problem if you have the know-how to troubleshoot the problem. So if someone asks why won’t my HP monitor turn on? You can provide the solution the person is looking after.

Share these easy-to-follow steps to point out the possible causes. More than that, the solutions are simply: secure the power source, keep your computer cool, and maintain updated drivers.