The PC turns on but does not show, how to fix

There is nothing more frustrating than when the PC turns on but the screen remains black. It puts an end to all your plans and stresses you beyond belief. When I first encountered this problem, it almost made me run out, I was already thinking, should I buy a new computer or monitor? However, thanks to this experience, if your monitor says “No Signal,” it’s not necessarily a sign that your monitor, computer, or hardware is broken. In many cases, it can be something as simple as a loose cable. In this in-depth guide, we’ll help you understand why the PC turns on but cannot be seen and how to solve.

Read also: How to connect monitor to laptop

Why is my monitor saying “No video signal”?

The error of the no video signal is displayed when the monitor is on but it does not detect a signal from the connected device. Several things can cause this problem, some more serious (and expensive) than others. These include:

• Loose or defective cables
• Badly configured display
• Driver obsoleti
• Defective monitor
• Hardware problem

1. Check your cables

Before you try anything else, get started carefully examining the monitor cables. A faulty, loose, or misplaced cable is one of the most common reasons your PC turns on but doesn’t show. Here’s how to properly check DVI, HDMI, or DisplayPort cables:

• Unplug each cable and then plug it back in. Make sure each is properly connected (fully inserted).
• It sounds obvious, but you should also make sure that each cable is in the right place.
• So, check if the cable is damaged. Look for frays, kinks, and cuts. Since some problems cannot be seen easily, it is also a good idea to rub your finger along each cable. This will allow you to hear less obvious problems.
• Examine the cable ports. Dust and debris can clog the ports and interfere with the connection.
• Now, test the cables on a different monitor. If you don’t have a spare monitor, we recommend that you ask a friend if you can use the di him.
• If a cable doesn’t work with your new monitor, it’s likely the root cause of the no video signal problem. It will be necessary buy a new cable.

If all cables seem to be working, move on to the next solution.

2. Check the Monitor Input Source

In today’s market, where versatility is a must, many monitors have multiple input sources. If, for any reason, your monitor is set to the wrong input sourceno doubt you will have problems with the video signal on your PC. You can check (and change) the monitor’s input source by accessing the display menu settings.

• Just open the menu del display and look for the setting “input source“. Some monitors even have a button for this on the side. This button allows you to scroll through the various options.
• Set the monitor to appropriate input source. For example, if the device is viewed via an HDMI cable, set the input source to HDMI.

Read also: How to connect the phone to the PC, 4 methods

3. Examine the adapters

If you’re using an adapter, be sure to look into that too. Sometimes, the video card may be defective, which can hinder the connection. Furthermore, even the adapter type it can be a problem. If the adapter cannot support multiple monitors or the configured monitor resolution, it may cause the no signal problem.

Read also: How to connect two monitors to your Windows PC or Mac

4. Reset the monitor

Sometimes, resetting your monitor can help put things back in order. The recovery process is generally straightforward, but can vary depending on the monitor manufacturer. Search on them support website or refer to the monitor manual.

5. Try a different device or monitor

Are all cables working and is your monitor set to the appropriate input? So there is likely to be a problem with the monitor itself or with your device. It’s possible use another monitor to determine which is causing the problem:

1. Replace your monitor with a different one and connect your device now.
2. If the new monitor is working properly, it means yours monitor is probably faulty. You will need to have it checked and repaired by the manufacturer. Depending on the mistake, it might be cheaper to buy a completely new monitor.
3. If the “No video signal” problem still exists, it means that the problem is with your PC. You will have to solve the problems with your device: we explain how to do it below.

That said, keep in mind that a device problem or setting (such as resolution configuration) it can make some monitors work and some not. For this reason, we recommend that you also connect your monitor to a different PC, just to be safe.

6. Check the resolution configuration

Before opening the PC, it is worth checking whether the resolution configuration is wrong. If the resolution of your graphics card is set to a higher value than your monitor can support, almost certainly your PC turns on but you can’t see it.

To adjust the resolution to one of your monitors you can try to boot into safe mode. By default, it starts the PC at low resolution. You can then adjust the display settings to your liking using the following method:

• Open the menu of Windows settings.
• Go up “system“, so displaythen search for “display resolution“.
• Switch to the desired resolution.
• A pop-up will appear asking if you want to keep these display settings.
• Select “Keep changes“.

7. Check your PC hardware

If the previous methods didn’t work, you will need to open the PC and check the hardware. Even a loose or faulty component can wreak havoc. Before you begin, make sure your computer is turned off. You should also disconnect all cables (including the power cord). In the first place, inspect loose components. Open the case and look for anything that looks loose.

While checking for a loose component is relatively simple, identifying a broken part can be more difficult. We recommend check the video card first, as it is more likely that she will cause “no signal” on your monitor if it is loose or damaged. Another component we recommend checking is the RAM bars: a faulty, dirty, or oxidized ram can cause monitor display problems.

Read also: Connect 3 monitors to the PC, how to do it

8. Reset the CMOS

You can also try to reset your computer’s CMOS:

• Turn off your PC and unplug all cables.
• Open the case and locate the CMOS battery.
• Gently remove it from the motherboard – you shouldn’t need to apply a lot of pressure to do this.
• After 1-5 minutesreposition the CMOS.

Please note that the above process may vary, depending on your device.

9. Update the drivers

Outdated drivers can cause various problems including the one with your PC turns on but not seen. They can cause stuttering, ghosting and yes, you guessed it, also a “no signal” monitor problem. Updating drivers can be difficult if you can’t see the display, but you can try to boot into safe mode, di which we discussed above. If the “no signal” problem occurs only occasionally or your display is showing on a different monitor, you can update the drivers by doing the following:

• Click the start button of the window.
• Search for “Device management“, Then click this option when it appears.
• Scroll through the categories and search for the drivers you want to update.
• Click with right-click on the drivers you want to update. Clicking the right mouse button will display a button “update driver“.

Can the power supply cause the “No Video Signal” problem on your PC?

I know power is insufficient to support the GPU, the GPU may interrupt the connection to the monitor, causing a “no signal” problem. Unstable or poor power supply can also lead to inconsistent rendering of your monitor display, especially if you have a multi-monitor setup.

Why is my second monitor not receiving any signal?

There are several reasons why your second monitor may have no signal. The causes discussed in this article may all be valid, but the most common reasons include wrong input, insufficient power O Windows not recognizing the second monitor. We recommend that you troubleshoot your second monitor using our tips above. If that doesn’t work, you need to start address multi-monitor problems.

Why does my monitor not recognize HDMI?

If your monitor doesn’t recognize an HDMI connection, it’s likely set to the wrong output. The HDMI port or cable may also be damaged.

Why no signal on the monitor when I play?

If your monitor doesn’t say any signals while gaming, it might be because your drivers are out of datethere’s a failure with the GPU or yours PSU cannot provide enough power under heavy load. It could also be caused by the computer overheatingespecially if you are playing an intense game without adequate cooling. Overheating can cause a variety of performance problems, including a “no signal” problem.