search
HomeHardware TutorialHardware NewsThe computer screen keeps showing no signal

The computer screen keeps showing no signal

Mar 02, 2024 am 11:07 AM
computer screensystem version

The computer monitor does not light up and only shows no signal input. What is the reason?

1. The reason why the computer display screen does not light up: The computer monitor is not powered on. Check whether the power switch of the computer monitor and the power adapter are powered on. If the power cord is loose, damaged, or the power cord has poor contact, you can move the monitor's plug or replace a cord.

2. It may be caused by the loose connection of the data cable between the computer host and the monitor. Here we will introduce to you the solution to the problem of black screen and no signal on the computer.

3. The computer screen is black but the host displays normally and there is no signal. It may be that the video cable connecting the desktop host and the monitor is in poor contact or there is a problem with the connected data cable.

4. Cause of failure: Usually the graphics card is loose or damaged. Solution: Open the case and re-insert the graphics card. Check whether there are small foreign objects in the AGP slot, otherwise the graphics card will not be inserted into place; for motherboards that use voice alarms, you should carefully identify the content of the voice prompts, and then solve the corresponding fault based on the content.

What should I do if the computer starts up and the screen shows no signal?

1. Hello, the computer starts up and the screen shows no signal. There may be the following reasons and solutions: 1- Check whether the monitor is connected correctly. .

电脑屏幕一直显示无信号(电脑屏幕一直显示无信号黑屏是什么原因)  第1张

#2. First, check whether the display signal line and host interface of the computer host are loose. If the line is loose, just unplug and plug it again. Unplug the monitor signal and check whether the interface and monitor signal cable are damaged. If the interface and wiring are damaged, just replace the monitor signal cable with a new one.

3. First, we need to check the position of the display signal cable and host interface of the computer host to see if they are loose. If the line is loose, please unplug it again. Unplug the display signal and check whether the display signal line interface and circuit are damaged. If the interface and line are damaged, please replace the display signal line with a new one.

4. After the computer host is turned on, the reasons why there is no signal on the display screen may be as follows: The connection between the monitor and the computer is not normal. Please check whether the connection between the monitor and the computer is firm and whether the wires are plugged in properly. You can try to replug and unplug the data cable, or replace it with a new one for testing.

5. The reasons and solutions for no signal on the monitor when the computer is turned on are as follows: Reason 1: It is possible that the video cable connecting the desktop host and the monitor is in poor contact (especially the interface is not plugged in properly or is loose), or it is possible that There is a problem with the connected data cable, so there is no signal input to the screen, no display, and a black screen.

6. The specific method is as follows: First, we need to check the position of the monitor signal line and the host interface of the computer host to see if it is loose. If the line is loose, just unplug and plug it again. Unplug the signal from the monitor and check whether the interface and circuit of the monitor signal cable are damaged.

Why is the computer display showing no signal input?

1. System version: windows10. Taking ASUS adolbook14 2020 as an example, there are three situations when the computer shows no signal input: The power supply inside the computer is burned out. Or the main version is burned. The connection between the computer monitor and the host computer is loose. The gold finger of the graphics card is dirty, resulting in poor contact.

2. Solution to no signal on the computer display: If there is a sudden problem of no signal or no signal when turning on the computer, first check whether the monitor connection cable on the computer is loose. If it is loose, tighten it.

3. Setting the resolution too high will also cause the monitor to have no signal. Just enable VGA mode to change the resolution. Generally speaking, 1024x768 and 800x600 are universal resolutions. If there is too much dust in the chassis, poor contact between the memory, graphics card and slots will also cause the display to not display. Clean the dust on the motherboard.

4. Power supply problem: If there is a problem with the power supply of your computer or monitor, it may also cause the monitor to not work properly. These may be common causes of No Signal Input errors on computer monitors.

5. The computer display shows no signal in the following situations: Pay attention to whether the motherboard light is on, the CPU fan is not turning, and the power supply fan is not turning. If there is no alarm, it is estimated that the motherboard may be more damaged; if the CPU frequency set in the CMOS of the jumper-free motherboard is incorrect, it may also cause a no-display fault.

6. Check whether the computer host is working properly: If the computer host itself fails, it will also result in no input of the display signal. You can try to restart the computer host, or connect the computer host to another monitor to test. Check whether the graphics card is working properly: If the graphics card fails, it will also cause the display signal to have no input.

What are the reasons why there is no signal on the computer monitor?

1. There are the following situations when the computer monitor shows no signal: Pay attention to whether the motherboard light is on, the CPU fan is not spinning, and the power supply fan is not spinning. If there is no alarm, it is estimated that the motherboard may be more damaged; if the CPU frequency set in the CMOS of the jumper-free motherboard is incorrect, it may also cause a no-display fault.

2. The reasons why the monitor shows no signal include: loose and damaged monitor interface, damaged data cable, damaged chassis interface, loose independent graphics card, loose integrated graphics interface, etc.

3. Graphics card problem: - Check whether the graphics card is plugged in and firmly connected to the motherboard (only for desktop computers). - If you have both discrete and integrated graphics, try reinstalling the discrete graphics or switching to integrated graphics to test. Memory Problem:- If there is a problem with the computer memory, it may also result in no signal display.

4. The reason why there is no signal on the computer monitor: Check whether the data connection cable is loose or damaged. If it is loose, tighten it. If not, find a new one and test it. If the computer monitor shows no signal for a while and then goes black, the main problem must be with the computer host, so start repairing it from the graphics card and motherboard.

5. Reasons why the monitor shows no signal: loose data cable, damaged data cable, graphics card socket, graphics card slot, memory problem.

6. When using a desktop computer, we often encounter the problem of no signal input on the monitor. This may be caused by loose interfaces, damaged cables, faulty monitors, chassis, power supplies, batteries, etc. It needs to be solved separately.

The above is the detailed content of The computer screen keeps showing no signal. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:码农网. If there is any infringement, please contact admin@php.cn delete
Everything Rumored for the 2025 Apple Watch Series 11Everything Rumored for the 2025 Apple Watch Series 11Apr 25, 2025 am 09:59 AM

As we celebrate the 10th anniversary of the Apple Watch today, we thought we'd take a look at what Apple has in store for the next-generation version of the device that's coming this fall. The Apple Watch Series 11 doesn't sound like it's going to be

The best monitors for Xbox Series X in 2025The best monitors for Xbox Series X in 2025Apr 25, 2025 am 09:16 AM

Level up your Xbox experience with one of the best monitors for Xbox Series X. A dedicated gaming monitor can be a worthy alternative to one of the best gaming TVs, offering a sharper picture or high-end features like a blazing fast refresh rate or s

The best SSD for PS5 in 2025: top storage expansion options tested and rankedThe best SSD for PS5 in 2025: top storage expansion options tested and rankedApr 25, 2025 am 09:08 AM

The best SSD for PS5 is a must if you own lots of PS5 games. Many of the most popular titles on the platform now require more than 100GB of storage space, with some coming in even higher. On my personal PS5, I have more than 300GB taken up by just Ca

Shopping for a Nintendo Switch 2 on eBay? Beware of deals that aren't worth the paper they're printed on – and that's the pointShopping for a Nintendo Switch 2 on eBay? Beware of deals that aren't worth the paper they're printed on – and that's the pointApr 25, 2025 am 09:02 AM

Nintendo Switch 2 pre-orders have kicked off in the United StatesWe've spotted several eBay listings promising a Switch 2 pre-order, but they aren't what they seemInstead of a console, you'll get a photo of the Switch 2Nintendo Switch 2 pre-orders ar

Forget Fallout, this post-apocalyptic shooter is free right now to celebrate its 15th anniversaryForget Fallout, this post-apocalyptic shooter is free right now to celebrate its 15th anniversaryApr 24, 2025 am 10:47 AM

The latest PlayStation Store sale starts today, bringing loads of unmissable discounts on some of the very best PS5 games around.Titled 'Big Games, Big Deals', the sale ends on May 7, giving you just over two weeks to take advantage of the savings an

BioShock 4 - everything we know about the next BioShock gameBioShock 4 - everything we know about the next BioShock gameApr 24, 2025 am 10:21 AM

Despite having been announced over five years ago, we barely know anything about BioShock 4, and have next to nothing that's been officially confirmed. This is a shame given it's one of the most interesting and highly acclaimed gaming series of all t

Star Wars KOTOR remake - everything we know so farStar Wars KOTOR remake - everything we know so farApr 24, 2025 am 09:53 AM

Though there's not been much news directly about the game recently, work on the Star Wars: Knights of the Old Republic (KOTOR) remake is presumed to be ongoing. That said, since we've not seen any substantial updates since the brief teaser released i

Marvel's Wolverine PS5 - everything we know so farMarvel's Wolverine PS5 - everything we know so farApr 24, 2025 am 09:30 AM

Marvel's Wolverine may not have a release date or even a release window yet, but there are still plenty of juicy details floating around about the upcoming action-adventure game.Developer Insomniac Games is known for Marvel's Spider-Man, as well as i

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools