Input signal not found

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8 Ways to Fix “Input Signal Not Found” on HP Monitor
What Causes “Input Signal Not Found” on HP Monitor?
How to Fix “Input Signal Not Found” on HP Monitor
How to Fix Computer No Display or No Signal on Monitor
Computer Turns On But Monitor Says No Signal (9 Ways To Fix)
Why Is My Monitor Saying No Signal?
Troubleshooting Why Is Your Monitor Saying No Signal
Input Signal Not Found Hp Monitor | Check The Video Cable And Video Source | Display Going To Sleep
Related Questions
Input Signal Not Found HP Monitor (7 Fixes)
Troubleshooting The Monitor
Input Signal Not Found Check the video cable and video source display going to sleep solution
- Step 4: Adjust The Monitor Resolution Settings
Troubleshooting The PC
Conclusion
- Похожие статьи

Next, properly ground yourself, open your PC unit and fully remove each of your RAM sticks.

8 Ways to Fix “Input Signal Not Found” on HP Monitor

Thus, it’s quite clear that the HP monitor isn’t receiving the correct input signal due to damaged video cables or problems with the source. Moreover, it could also be caused due to underlying issues with the monitor firmware or device drivers.

But you do not need to worry, as we have covered eight proven ways to help you fix this monitor error and bring it back to life.

Table of Contents

What Causes “Input Signal Not Found” on HP Monitor?

Basically, the data cables (video cables) are responsible for carrying the input signal from the video adapter to a monitor. However, in the process, these signals might get lost due to various factors, and you may encounter errors like “Input Signal Not Found” or “No Signal” even when your PC seems to be running fine.

Loose or damaged data cable connections
Selection of incorrect input source
The video card or RAM stick is not seated well
Corrupted drivers or firmware
The refresh rate of the monitor and computer are not synced
Damaged monitor, RAM, graphics card, or motherboard

How to Fix “Input Signal Not Found” on HP Monitor

Before moving on, we recommend power cycling your monitor and PC. This will eliminate the firmware bugs that might have been interrupting the input signals.

Likewise, if you recently installed a dedicated graphics card instead of an integrated one, the motherboard will disable the video output ports on the latter. Thus, your monitor doesn’t receive any input signals if you have connected the video cables to the motherboard’s port. In such a scenario, you need to connect them to the dedicated GPU ports, and this should solve the issue.

But if you’re still getting the “Input Signal Not Found” error, there might be some other hardware or software problems. So, you can go through the solutions below that should help you wake your monitor.

Use the Right Input Source

Most modern monitors come with multiple video input ports. In some models, you can find VGA, HDMI, DisplayPort, or other interfaces, while in some other models, you may find two HDMI ports included.

In either of the monitors, you’ll have to select the correct input source to see your PC content. For example, if you have used a DisplayPort connection, but the source is set to HDMI, your HP monitor will not detect the HDMI or may throw the “Input Signal Not Found” error. Likewise, if you’ve used the first HDMI input port and have set the source to HDMI 2, this could also trigger the same message.

Here’s a simple guide on how to use the correct input source on your HP monitor:

Press the dedicated button on your monitor to launch the On-Screen Display (OSD). Well, this may be found on the front, back, or bottom, depending on the HP model. We suggest checking the monitor manual if you can’t locate it.
Now, find the Input Source section.
Next, select the interface you’re using to set up the monitor connection.
Wait a few seconds, and your HP monitor should display the video output.

Check for Damaged Cables and Ports

If the error message pops up even after using the right source, there are probably issues with your video cable or port. When either is damaged, the monitor connection becomes loose frequently, which may repeatedly bring up the error message.

Firstly, we recommend checking the ports on both the PC case and the monitor. Likewise, you need to check your laptop’s video output port if you’re using the HP screen as your secondary monitor.

Usually, modern monitors and PCs come with multiple HDMI ports. So, we recommend using the cable on a different port and checking if the problem persists. However, if your PC or monitor doesn’t have an extra HDMI port, you can opt for a different video cable.

Reseat Video Card and RAM Stick

If the input source is right and there’s no cable connection problem, the “Input Signal Not Found” error can also pop up when there are issues with your video card or RAM.

Basically, the video card is responsible for controlling the output on your HP monitor, and if it hasn’t been appropriately seated, such monitor errors can be expected. Similarly, issues with the Random Access Memory (RAM) will prevent the PC from booting, as it won’t get past the POST stage.

Thus, we suggest reseating these internal components, and here’s how you can do just that:

Firstly, shut down your computer and unplug all the cables.
Then, use the dedicated button or unscrew the PC casing to remove it.
Now, wear an antistatic wrist strap and start disconnecting all the cables connected to the GPU.
Next, unlock the PCIe clip from the mounting bracket.
Now, carefully slide out the graphics card from its dedicated slot.
Then, clean the graphics card as well as the slot.
Similarly, get to the RAM slot and unclip both the clips holding the stick in place.
Carefully remove it from the slot.
Next, use a brush to clean the RAM slots along with the stick.
Now, reseat both the video card and RAM stick back to their place, ensuring proper alignment.
Then, push the dedicated clips to secure them.
Finally, cover the PC casing and turn on your computer. The monitor should no longer show the signal error.

Update Monitor and Display Drivers

Another cause for the “Input Signal Not Found” error is an outdated monitor or display driver. Basically, an obsolete driver will create problems for your PC to communicate appropriately with the monitor.

Thus, we highly recommend checking and updating the drivers regularly to ensure that you do not face such errors. However, doing this can be tricky as your display goes completely black. So, you’ll have to restart your PC first and quickly follow the below process before you encounter the monitor error:

Use the Instant Search feature to search and launch the Device Manager utility.
Now, click on Display Adapter and right-click the right driver.
Here, select Update driver, which will take you to a new dialogue box.
Under ‘How do you want to search for drivers?’, tap the first option – Search automatically for drivers.
Once the drivers are updated, wait to see if the monitor error pops up.
If it does, restart your computer and open Device Manager again.
This time, repeat the above steps for your monitor driver.

Note: You may also try enabling the safe mode in networking mode to see if the monitor error pops up here. If it doesn’t, you can confirm that the primary drivers are not the issue.

Update HP Monitor Firmware

Basically, firmware dictates necessary instructions to ensure the monitor can communicate with the PC properly. However, if you’ve not updated it for a long time, errors like the “Input Signal Not Found” can be triggered.

Well, HP provides dedicated software, the HP Display Center, to tweak all the display-related settings, where you can easily update the firmware. So, before moving forward with the below steps, ensure that you download it from the Microsoft store:

Launch the application and move to the Advanced tab.
Here, choose Firmware Update.
Wait until the update is complete and restart your computer. This should fix the signal error.

Tweak Screen Resolution and Refresh Rate

If your monitor doesn’t support the resolution or refresh rate sent by the video adapters, there’s a chance you might meet with the “Input Signal Not Found”. Thus, you can tweak these settings just like you did when updating the corrupted drivers:

Press Windows + I, which will open Settings on your HP monitor.
Here, navigate to System >Display.
Now, expand the Display Resolution drop-down under Scale & Layout.
Here, select the recommended resolution.
Now, click on the Advanced display setting.
Here, set the refresh rate to the maximum available.

But if you have a dual, triple, or multi-monitor setup, you need to select your HP monitor first.
Finally, wait and see if the error pops up again.

Reset or Update HP BIOS

Well, another cause for the signal error could be the improper BIOS settings. So, it’s best to reset the BIOS/UEFI that should revert the system to the state when the message never appeared:

Restart your computer and use the dedicated key for HP (Esc) to get into the BIOS menu before the PC boots into Windows.
Now, search for Restore Defaults option and proceed with the on-screen instructions.
Once the BIOS is successfully reset, your computer should restart, and the HP monitor should no longer display the error message.

If resetting didn’t do the trick, kindly go through the below guide on how you can update your BIOS safely:

Get to the BIOS again.
Here, find and choose the Update System BIOS option.
Follow the on-screen instructions, and this should successfully update your BIOS.
Now, turn on your computer and check if the error persists.

Identify and Replace Damaged Monitor or PC Components

If none of the above solutions work, your monitor or PC components (graphics card, RAM, or motherboard) are probably damaged. To confirm this, try connecting your HP monitor to a different PC. If the error persists, the issue is perhaps with the display device, and you might want to replace it.

Likewise, you can also try connecting a different monitor to your current PC. If the same message appears in the new display device, know there are issues with the PC components.

How to Fix Computer No Display or No Signal on Monitor

Upgrade graphics card the right way
Install a new RAM
Upgrade motherboard

Bhishu Acharya is a technical content writer at TechNewsToday. He specializes in monitors, laptops, storage devices, and other peripherals. Apart from computer hardware, you can also find his how-to and troubleshooting articles on Windows, internet, security, and networking. Ever since getting his hands on a personal computer, Bhishu started exploring its internal components at just 10. His growing curiosity led him to undertake the Computer Science & Information Technology degree and is just a year away from graduation. While balancing his study and work life for over four years, he has harnessed different sets of technical skills. With his expertise, he is now dedicated to helping netizens looking for hardware and software-related fixes. Today, Bhishu’s proficiency extends beyond computer hardware. In his spare time, he enjoys coding and learning new programming languages. You can contact him at bhishu@technewstoday.com

Computer Turns On But Monitor Says No Signal (9 Ways To Fix)

There’s nothing more frustrating when your computer turns on but has no display. It puts a halt to all your plans and leaves you stressed beyond belief.

When I experienced this issue for the first time, it left me on the verge of a breakdown; would I have to fork out for a new one? Or worse, is the hardware I spent my hard-earned cash on busted?

However – as I learned from first-hand experience – if your monitor is saying no signal, it’s not necessarily a sign your monitor or hardware is faulty. In many cases, it can be something as simple as a loose cable.

In this in-depth guide, we’ll walk you through the troubleshooting process. We’ll also cover the most common fixes.

Table of Contents

Why Is My Monitor Saying No Signal?

The no signal error appears when your monitor is on but isn’t detecting a signal from the connected device.

Several things can cause this issue, some more severe (and costly) than others. These include:

Loose or faulty cables
Poorly configured display
Outdated drivers
Faulty monitor
Hardware issue

Troubleshooting Why Is Your Monitor Saying No Signal

Here, we’ll cover how to effectively troubleshoot your monitor. We’ll start with the simplest solutions and work our way to the more complex ones.

Full disclosure: It does get a little trickier if your device is causing the no signal issue. Please don’t skip any stages. It could be a software problem, such as an outdated driver, or in some cases, a hardware issue. Please try out all troubleshooting methods before jumping to a conclusion.

Check Your Cables

Before you try anything else, start by examining your monitor cables closely. A faulty, loose, or wrongly-placed cable is one of the most common reasons for a monitor saying no signal.

Here’s how to properly check your DVI, HDMI or DisplayPort cables:

Unplug each cable and then replug them. Ensure each one is properly connected (fully pushed in).
It sounds obvious, but you should also make sure each cable is in the right place.
Next, inspect for cable damage. Look for fraying, bends and nicks. Since some issues can’t be seen easily, it’s also a good idea to rub your finger along each cable. This will allow you to feel for less obvious issues.
Examine the cable ports. Dust and debris can clog up the ports and interfere with the connection.
Now, test each cable on a different monitor. If you don’t own a spare monitor, we recommend asking a friend if you can use theirs.
If a cable doesn’t work with the new monitor, it’s likely the root cause behind the no signal issue. You will need to buy a new cable.

If all your cables seem to be in working order, move onto the next possible solution.

Check Monitor Input Source

In today’s market where versatility is a must, many monitors have multiple input sources. If, for whatever reason, your monitor is set to the wrong input source, you’ll no doubt experience any signal issue.

You can check (and change) the monitor’s input source by accessing the display menu settings.

Simply open up the display menu, and look for the “input source” setting. Some monitors also have an actual button on the side. This button allows you to cycle through the various options.
Set your monitor to the appropriate input source. For example, if your device to monitor connection is through an HDMI cable, you would set the input source as HDMI.

Examine Adapters

If you’re using an adapter, make sure to examine this as well. Sometimes, the display adapter can be faulty, which can hinder the connection. Moreover, the type of adapter can also be a problem. If your adapter cannot support multiple monitors or your monitor’s configured resolution, it may cause the no signal issue. We discuss the resolution configuration in further detail down below.

Input Signal Not Found Hp Monitor | Check The Video Cable And Video Source | Display Going To Sleep

Reset the Monitor

Sometimes, resetting the monitor can help to restore things to working order. The resetting process is usually simple, but it can vary depending on your monitor’s manufacturer. Search their support website, or refer to the monitor manual.

Test With Different Device or Monitor

Cables are all in working order, and your monitor is set to the appropriate input? Then the likelihood is that there’s either an issue with the monitor itself or your device.

You can use another monitor to determine which one is causing the problem:

Swap out your monitor for a different one, and connect your device to it.
If the new monitor works fine, it means your monitor is likely faulty. You will need to get it checked over and repaired by the manufacturer.

That said, keep in mind that a device issue or setting (like resolution configuration) can cause some monitors to work and others to not. For this reason, we recommend connecting your monitor up to a different PC as well, just to make sure.

Check Resolution Configuration

Before opening up your PC, it’s worth checking if the resolution configuration is at fault. If your graphic card’s resolution is set to higher than your monitor can support, it will almost certainly cause a no signal issue.

To adjust the resolution to one of your monitor can handle you can try booting up safe mode. By default, it starts your PC at a low resolution. You can then adjust the display settings as you please using the method below:

Windows settings

Go to “system,” then display,” then look for “display resolution.”

Change to desired resolution.

A pop up will appear asking if you wish to keep these display settings.

Check PC’s Hardware

If the methods above haven’t worked, you’ll need to open up your PC and check the hardware. Even one loose or faulty component can wreak havoc.

Before you begin troubleshooting the hardware, make sure your computer is turned off. You should also unplug all cables (including the power cord).

First, inspect for loose components. Open the case and look for anything that seems amiss. A component could appear out of place or be at a slightly awkward angle. Most loose parts won’t be obvious though. You’ll likely have to feel around or reattach each part.

While checking for a loose component is relatively easy, identifying a busted part can be more challenging. You will need to replace them one by one to determine which is damaged.

We recommend checking the graphics card first, as this is the most likely to cause a “no signal” issue if it’s loose or damaged. Another component we recommend checking is your ram sticks – a faulty, dirty or oxidized ram stick can cause monitor display issues. Then check the rest of the hardware including the motherboard, PSU.

Reset the CMOS

You can also try resetting your computer’s CMOS:

Turn off your PC and unplug all cables.
Open up the case and locate the CMOS battery.
Gently remove it from the motherboard – you shouldn’t need to apply much pressure to do so.
After 1 to 5 minutes, put the CMOS back into place.

Keep in mind that the above process can vary, depending on your device. So, check the in-depth guide on replacing CMOS battery.

Can Outdated Drivers Be Why My Monitor Is Saying No Signal?

It’s vital you have the latest drivers downloaded. Out-of-date drivers can cause several problems with your PC. They can cause stuttering, ghosting and yes, you guessed it, even a monitor “no signal” issue.

Updating your drivers can be difficult if you can’t see your display, but you can try booting up safe mode, which we’ve discussed above. If the “no signal” issue only happens occasionally, or your display shows up on a different monitor, you can update the drivers by doing the following:

Click on the Window start button.
Search for “device manager,” then click this option when it pops up.
Go through the categories, and look for the drivers you would like to update.

Input Signal Not Found HP Monitor (7 Fixes)

HP has a reputable lineup of computer monitors, but they do come with a few challenges. One such challenge is encountering the ‘input signal not found error.

SOLVED: Hp Laptop Cannot Boot From .

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To fix the input signal not found HP monitor problem, turn off and unplug the monitor and computer. After 30 seconds, power on the monitor first, followed by your computer. If the issue persists, ensure correct input and display resolution settings are selected and all cables are secure and undamaged.

There are 7 common troubleshooting steps you should try. Some of these fixes involve troubleshooting the display directly, while others involve troubleshooting your PC.

I strongly recommend you follow these steps in order.

We will start with the most common fixes and then work our way towards less common, more involved troubleshooting steps.

Contents show

Troubleshooting The Monitor

Step 1: Unplug And Reboot The Monitor And PC

Before trying anything else, turn OFF and unplug your monitor and your computer. After 30 seconds plug everything back in and turn ON the monitor FIRST, followed by the computer SECOND.

I know, I know. You didn’t come here to be asked “Did you try turning it off and turning it back on again?”

Humor me. The sequence is IMPORTANT – so again, turn on the monitor FIRST, then computer SECOND.

Countless users have indicated that after trying everything else, this simple solution worked for them.

So you’ve tried unplugging and rebooting the devices and still, you’re encountering the problem?

No need to worry just yet – advance to step 2.

Step 2: Adjust The Monitor Input Setting

It is important to make sure your monitor is set to the correct Input.

To do this, you need to first know what kind of input cable you are using.

HP monitors most commonly support 4 different kinds of cables: HDMI, DisplayPort (DP), DVI and VGA. Identify which cord you have using the image below.

Once you have identified the cable you are currently using, locate the Source or Input button.

The Source/ Input button will either be located in the middle or right-hand side of your monitor. It will either be on the backside of the display or towards the bottom.

For some models, you will first need to use the Menu button and then navigate to Input.

Once you press the Input and/or Menu button, options will appear on your monitor. Toggle the input options until you identify the input that matches your input cable.

Step 3: Inspect The Display Cables

Now that we are sure your monitor is set to the correct Input, let’s check your display cable connections.

First and foremost, make sure that the connection is firm on both ends.

A loose cable is one of the most common reasons for a ‘no signal’ error and can also lead to a whole host of additional issues like monitor flickering and more. A problem can arise even if the connection is even slightly broken.

That tiny space you see in the image below between the HDMI and the HDMI port in my laptop?

You guessed it – that was enough to trigger the problem.

Next, make sure there are no issues or obstructions with the cable itself. Check for any signs of visible damage.

Finally, try using a different input cable than you are currently using.

For example, if you are specifically using an HDMI cable, try swapping out the HDMI for a DP, DVI or VGA cable and vice versa.

When you try a new cable, be sure to follow the process in step 1 again and adjust the display Input accordingly.

Input Signal Not Found Check the video cable and video source display going to sleep solution

If using a different display cable solves the issue, a faulty display cable was likely the culprit.

Step 4: Adjust The Monitor Resolution Settings

Your monitor has a range of possible display resolutions that it can relay back to your PC.

It is possible that your computer’s graphic card is currently set on a display resolution that is higher than what your monitor can handle.

This can sometimes even lead to your monitor not turning on all together. To fix this, reboot your computer using Safe Mode.

In Safe Mode your computer will automatically use a lower display resolution than normal use.

This will allow you the opportunity to go into your computer’s resolution settings and select a lower standard display resolution.

Not sure what resolution your monitor can support? You have two options:

Find your model number on the back of your monitor and look it up in the HP monitor user manual.
Play around using some trial-and-error. Incrementally increase your resolution. Wait approximately 30 seconds between each update and see whether the error message pops up.

Troubleshooting The PC

We are now at the end of the most common fixes if your monitor is the source of the problem.

To confirm that your monitor is the issue, try using your monitor with another device.

This can be another laptop, desktop computer, game console, etc.

If your monitor display works, then you know your monitor is working properly and your computer/ hardware is the culprit.

First, a few disclaimers. Steps 6 and 7 below require you to open and manipulate your laptop or desktop computer.

If your hardware is company property, it is best to leave these steps to your company’s IT support.

If your computer/ hardware is personally owned, you may still wish to bring it in to a local computer repair shop.

However, if you do plan to proceed make sure you have done proper research. At a minimum you should know how to properly ground yourself to avoid destroying your computer with electrostatic charge.

Step 5: Ensure The Display Cable Is Plugged Into Graphic Card And Not The Motherboard

Nearly all desktop PC’s have an on-board graphics unit with corresponding connections on the back of your computer.

If this applies to you, be sure that your monitor cable is connected directly into the graphic card and NOT the motherboard.

Often times with a desktop PC it can be as simple as that.

Step 6: Remove, Reorder, and Reseat The RAM Sticks

It is possible your RAM (Random Access Memory) sticks are not making a proper connection.

To fix this, first make sure your computer is powered OFF and the power cord is removed from the outlet.

Next, properly ground yourself, open your PC unit and fully remove each of your RAM sticks.

Lastly, reorder the sicks and reinsert them back into their respective RAM seats.

Step 7: Reset CMOS/BIOS

CMOS stands for Complementary Metal Oxide Semiconductor.

The CMOS battery in your laptop or computer powers the BIOS firmware. BIOS stands for “Basic Input/Output System” and it manages the essential functions of your computer.

Resetting your BIOS sets it back to its previous configurations and can often fix a lot of different issues.

Once again make sure your computer is powered OFF, the power cord is removed, and you are properly grounded.

Next, remove the CMOS battery from the motherboard. Then, hold down the power button to drain all excess remaining power.

After about a minute, reinsert the CMOS battery back into your PC.

Finally, Reboot your computer and check to see if your display is working.

Conclusion

Unplug and reboot monitor and PC
Set monitor to correct input
Inspect display cables
Check resolution settings
Make sure input cable is plugged into graphic card
Remove, reorder, and reseat RAM sticks
Reset CMOS/BIOS

If you’ve tried all of these fixes and you’re still having issues, you can also contact HP Customer Service at 1 (800) 474-6836.

You can also use your model number to check the status of your HP warranty.

Chelsea Ashbrook is a Senior Manager of Corporate Digital Experience at Genentech. Chelsea received her B.A. from the University of Connecticut and has spent the last 11 years working in the technology field.