Do you experience a problem where your monitor randomly goes black with the power light on? Then you’re not alone. Several users have complained about experiencing this problem on their system. When the monitor starts malfunctioning, you won’t be able to use the PC.
There can be different reasons causing it like an unstable power supply, faulty drivers or overheating. Fortunately, there’re a handful of solutions to fix it. Keep reading the guide to identify the causes and how to solve them.
What are the Reasons Monitor Go Black Randomly?
There can many reasons behind this problem. Whether it’s a software or hardware complication, it can be fixed once you understand the root cause of why your monitor goes black randomly. Here’re the possible reasons:
- Broken display cable: The monitor is connected through a display cable (HDMI/VGA/USB-C) that transfers data. Any damage or tear in the connector or cable can make the monitor act weird.
- Unstable power supply: A stable power supply is essential for the monitor to function smoothly. If the monitor is connected to an external power source, the AC adaptor may be damaged and caused the monitor to go black. If you’re using a laptop, check if the battery is damaged.
- Damaged GPU: If your monitor is connected through a dedicated GPU, it might lead to a problem if it gets damaged.
- Overheating: When you’re using the computer continuously for long hours, the monitor can go black due to overheating.
- Overlocking: Though overlocking is useful to make the computer run faster, it may also create technical issues like the one in question.
- Outdated or faulty graphics driver: Your monitor may not be able to perform optimally if the graphics driver is not updated. An outdated or even faulty driver can cause bugs or glitches in the system.
- Outdated system files: In case your system files are outdated, corrupted or incomplete, they could be the primary reason for this problem. An outdated Windows OS can also be the culprit.
- Heavy graphics: Perhaps you’ve installed heavy-graphic software that isn’t compatible with your computer. So, the monitor can become unstable and randomly go black.
- Third-party software: This is very uncommon, but third-party software sometimes might conflict and trigger problems like the monitor going black.
How to Fix Monitor Goes Black Randomly
Before rushing to the computer service center or proceeding to advanced solutions, here’re some basic fixes to try.
First and foremost, allow your computer screen to cool down and rest. As discussed above, overheating of the computer can cause the monitor to go black.
To do that, turn off the computer and use a PC vacuum to clean the hardware. You can also take a soft towel soaked in distilled water and wipe the screen gently. Both methods will help you clean dust and debris.
Are you still encountering the same problem? Then follow the fixes below.
Fix 1. Check Cable Connections
You can start by checking all cable connections to the monitor. Check whether the HDMI/VGA/USB-C cable is properly plugged into the supply and they’re in good condition. Additionally, check for hardware damage or improper connection in the AC adapter.
If you find a damaged or broken cable, replace them instantly with a new one and check if the display problem is resolved. Another tip is not to twist the cables since they can get damaged over time.
Fix 2. Examine Display Ports
If the cables are connected properly and not damaged, the next thing you need to examine is the display ports. Sometimes dust gets settled in some ports over time or there can be rust if you didn’t clean the computer for a long time.
For dust, you can take a flat-tip cotton bud damped in 90% isopropyl alcohol and clean the ports with it. For corrosion in the display ports, contact your computer model’s service center to get it cleaned.
Fix 3. Disable CPU Overlocking
When you’ve tried to change the clock rate or overlocking speed on the computer, it often leads to glitches and bugs, like the monitor goes black. So, it’s suggested to disable CPU overlocking and for that, you need to boot the BIOS.
Here’re the steps to follow:
- Shut down your computer and boot it through BIOS Setup.
- Go to the Advanced tab and choose Performance.
- Disable CPU Overlocking.
- Click Save and restart the computer.
Fix 4. Change Laptop’s Battery
Experiencing a black screen on the laptop depends on the battery condition. While installing heavy software or doing CPU-intensive work, if a black screen suddenly appears and the laptop restarts, your battery can cause it. Over time and continuous use, laptop battery life degrades. Check for the signs, like overheating, short run time, or failing to charge, and replace them with new ones.
Fix 5. Check Computer’s Power Settings
A minor issue in the computer’s power settings might cause the monitor to go black randomly. So, you need to ensure that your computer’s Energy Saving Mode or Screensaver is not turned on.
To do it, follow the steps below on Windows 10:
1. Click the search bar on Windows, type Power, and choose Power & sleep settings from the result.
2. Under Screen and Sleep, set the settings to Never.
3. Now, again type Screensaver in the search bar and choose Turn screen saver on or off.
4. Set the Screen saver to None and click Ok to confirm.
5. Reboot the computer and check if the monitor works correctly.
Fix 6. Update Graphics Driver
As already mentioned, a faulty or outdated graphics driver can lead to monitor problems. To ensure the monitor and graphics card work properly with your Windows operating system and programs, it’s important to use the updated graphics driver.
You can update the graphics driver manually, from the manufacturer’s website or by downloading a driver update software.
Here we’ve shown the process to update the driver manually:
1. Right-click on the Start menu and select Device Manager.
2. Find your graphics card that may be named as “Nvidia” or “Intel”. You can find it under the Display adapters option.
3. Double-click on your graphics driver and go to the Driver tab. Select Update Driver.
4. Choose Search automatically for drivers.
5. If an update is available, click Next and wait until the update is finished.
Fix 7. Reset Monitor to Factory Setting
If the monitor continuously turns off and goes black, then your monitor settings is the root cause of the problem. Factory resetting the monitor can help you with troubleshooting.
The process may vary based on your computer’s model. Follow the instructions below:
- Press and hold the Menu button on the side of the monitor.
- Select Menu.
- Navigate to Other Settings and click Factory Reset.
Fix 8. Update Windows OS
If you have tried all of the fixes above but it doesn’t work, it could be that the problem with your Windows OS. You can install the latest version of the operating system to get rid of glitches and other technical issues.
Simply search for Check for Updates using the Windows Search bar. If an update is available, click Download and Install.
That’s all. Hopefully, this guide has been helpful in solving the problem. Try out the solutions one by one and get your monitor to work properly again. If you have any more problems regarding Windows, let us know in the comment box and we’ll provide a troubleshooting guide for that.