Issues with data or power connections may prevent your monitor from turning on. Most users claim to have faced this problem when their system goes to standby orsleep mode but doesn’t wake up. Also, this can happen when the operating system can’t boot up or there are problems within the internal hardware components.
If you do not notice any light on the monitor’s LED, note that there’s a problem with your power port or the cable. In other cases, the LED emits light but you’re stuck with ablack screen. This indicates issues with the data port or cable.
Before moving forward, we first recommendforcerestarting your computerandreconnecting all the cables. Also, you can tryresetting the graphics driver(using Windows + Ctrl + Shift + B keys) to resolve possible display issues.
Inspect Cables, Ports, and Wall Outlets
First and foremost, you need to ensure that none of the cables and ports are damaged. In some cases, the wall outlet may have been damaged. So, you can tryconnecting the power adapter to another outlet.
Next, inspect both the power and data (HDMI, DisplayPort, VGA) cables, ensuring they aren’t broken. Kindly replace the cable if found damaged. You may even try another data cable if your monitor supports the interface.
While you’re at this, don’t forget to check the power and data ports. If you find any issues with the power port, kindly check the warranty and take it to the nearest repair center to get it fixed. For damaged data ports, you may simplyplug the cable into an alternative oneor use a different interface.
Power Cycle Monitor
Power cycling will recover your monitor from its unresponsive state, fixing the basic problems by reinitializing the configuration parameters. Below is a simple guide on how you can do just that:
Examine Error Messages on the Screen
If the monitor isn’t completely black and instead throws some errors, you can directly follow the screen instructions.
Note the Blink Codes
Some manufacturers have adopted blink codes tonotify users of the possible causewhen the monitor doesn’t turn on. These codes can be identified by noting the blinking pattern of your monitor’s LED or dedicated keys on the keyboard.
For example,HP’s Caps Lock key starts to blink(long blinks followed by short ones) with distinct patterns indicating different issues. Therefore, if you also notice similar blinking sequences, you may refer to your manufacturer’s official website to learn the root cause and their possible solutions.
Check Issue in Another Monitor
If none of the above fixes helped, the problem might lie within your monitor’s internal components. In this case, the only option is to repair or replace the output device.
Well, you can check this by connecting another monitor to your system. If the other display turns on without any issues, it’s an indication that your monitor is malfunctioning. However, if the second display also doesn’t turn on, know that there are issues with other hardware components.
Replace Monitor’s Backlight or LED Strips
The backlight inverters work as the light source for LCD monitors. So, the display panel won’t be able to produce images if it gets faulty.
To confirm that the backlight is failing, take a white light near the screen and check if you can see the graphics. If yes, kindly go through the below steps to replace the monitor’s backlight:
While the backlight inverters are present on LCDs, LED monitors have dedicated strips to generate images. Before replacing these components, you need to first ensure whether they are damaged:
Check and Upgrade Faulty Hardware Components
If there are no issues with the backlight, you may want to check if the hardware components of your computer are faulty. We recommend inspecting both your Graphics Processing Unit (GPU) and Power Supply Unit (PSU).
Firstly, you’re able to check whether the graphics card is appropriately seated and whether the power cable is also properly connected to the PSU:
If this didn’t help, you may need to upgrade the faulty hardware components. But before doing that, we suggest checking the warranty period. If it hasn’t expired, kindly take it to the nearest repair shop. Otherwise, you can refer to our dedicated articles onhow to change a PSUor upgrade the graphics card on your PC.
