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A monitor is an electronic output device that is also called a video display terminal (VDT) or a video display unit (VDU). It is used to show images, text, video, and graphics that are made by a connected computer through the video card of that computer. Even though it looks like a TV, it has a much higher resolution than a TV. On March 1, 1973, the first computer monitor came out. Older monitors were made with a fluorescent screen and a Cathode Ray Tube (CRT), which made them big and heavy and took up more space on the desk.
All monitors are now made with flat-panel displays, which are usually lit up with LEDs. Older CRT monitors took up more space on the desk than these newer LCD monitors. If you use an external monitor or even a top console gaming monitor with your work computer or home PC, it may be helpful to know how to fix some common monitor and connection problems. Here are some easy ways to fix a “no signal” error on your monitor, so you don’t have to give up and look for ways to recycle your computer monitor.
7 Ways to Fix Monitor has No Signal
Cabling and Power Problems
This may seem obvious, but the answer may be to check all wired connections and make sure the input device is turned on. Check your video monitor cable or HDMI cable to make sure it’s securely connected to the PC or other input device and the monitor. Check out our quick guide to all of the monitor connection types if you don’t know what these cables are called. Make sure your desktop tower PC is turned on if you’re using one. Some PCs have cooling fans that spin and make noise even when the computer isn’t turned on. So make sure the power light is on and that the PC and monitor are both connected to a power source. This is a good idea if your monitor doesn’t turn on properly.
Examine Adapters
If you’re using an adapter, you should also check this. The “No Signal on Monitor” problem can sometimes be caused by a broken display adapter. Also, the type of adapter can make a difference. The problem with no signal could be caused by your adapter not being able to support multiple displays or by the way your monitor is set up.
Replace Your Hardware
- A faulty graphics card can cause your monitor to give no output and no input signal. If the drivers are not the problem, the graphics card will need to be replaced.
- A faulty monitor that is not compatible with many devices will not get better on its own. Check your warranty options and get a new monitor if all else fails.
- This would be advisable if your monitor is flickering or you fear the device is deteriorating.
- If your monitor is taking too long to turn on, it could be a sign that the monitor is losing power.
- Check if the “No signal on the monitor” problem is solved.
Check Resolution Configuration
- Call up the Windows settings menu.
- Under “System“, look for “Display Resolution” and then for “Display”.
- Change the resolution to the one you want.
- If you want to keep these display settings, a pop-up window will appear.
- Select “Keep Changes.”
- Check that the “No signal on the monitor” problem is resolved.
Test With An Alternative Monitor Or PC
If you’re sure that your display’s lack of signal isn’t caused by a software problem (like old drivers), you may need to try a different monitor or PC as part of your troubleshooting. Change the monitor on your PC with a spare one (if you have one available). If the problem happens again, it’s likely that your PC has a problem that you’ll need to find out more about. Also, if your main monitor stops working but a spare one does, this could mean that there is a problem with the hardware of your monitor. But this doesn’t mean that there isn’t another problem with the software.
Upgrade Graphics Card Drivers
- If your graphics card is relatively new, you may be able to fix the problem by simply updating the drivers.
- It is recommended to update the drivers regularly to get bug fixes and new features.
- Support for new screen resolutions and monitors is included.
- You can use Windows Update to update your NVIDIA drivers with an NVIDIA graphics card.
- Check if the “No signal on the monitor” issue is fixed.
Reset the CMOS
- Switch off your PC and disconnect all cables.
- Open the case and locate the CMOS battery.
- Carefully remove it from the motherboard – you should not have to apply much pressure.
- After 1 to 5 minutes, put the CMOS back in place.
What Causes Monitor has No Signal
Final Words
So here we conclude our article on How to Fix Monitor has No Signal. If your company doesn’t have an IT department, it may be up to you to keep your systems running if something goes wrong. If your monitor says “No Input Signal,” it means that your CPU isn’t sending any text, audio, or video to your screen. This error could be caused by a number of things. It could be anything from the wires connecting your monitors to your CPU to the monitors themselves or even the video card in your computer.