Input Signal Not Found HP Monitor? 10 Simple Fixes to Try
If you’re seeing the error message “Input Signal Not Found” on your HP monitor, it can be frustrating and concerning. This issue typically means that your monitor is not receiving the video signal from your computer or device. Whether you’re using an HP desktop monitor, laptop, or gaming setup, this problem can occur for various reasons, but it can often be resolved quickly with a few easy steps. In this article, we will guide you through 5 simple fixes that can help solve the issue of your HP monitor not detecting input.
1. Check Your Cable Connections and Ensure They’re Secure
One of the most common reasons your HP monitor shows the input signal not found error is an issue with the cables. A loose or damaged HDMI, DisplayPort, or VGA cable can interrupt the signal from your computer to the monitor.
How to fix this:
- Disconnect and reconnect the cables: Ensure that both the HDMI, DisplayPort, or VGA cable is securely connected to both your HP monitor and the computer.
- Inspect the cables for damage: If the cables are frayed or damaged, replace them with a new, high-quality cable.
- Try a different cable: If possible, test with a different HDMI or DisplayPort cable to rule out faulty connections.
By double-checking all cable connections, you can quickly eliminate this as the cause of your monitor not receiving input.
2. Make Sure the Monitor is Set to the Correct Input Source
If your HP monitor is displaying the input signal not found message, it might not be set to the correct input source. HP monitors typically have multiple input options, including HDMI, DisplayPort, VGA, and sometimes even USB-C. If the monitor input source doesn’t match the signal output from your computer, you won’t see any image on the screen.
How to fix this:
- Open the monitor menu: Press the Menu button on your HP monitor.
- Select the correct input source: Use the buttons on the monitor to navigate to Input Source or Source and select the right input (e.g., HDMI, DisplayPort, or VGA) depending on your cable connection.
- Ensure you are using the correct port: If you have multiple HDMI ports or DisplayPort connections, make sure you are selecting the right one in the monitor’s menu.
Setting the correct input source on your HP monitor ensures that the signal from the computer is properly recognized and displayed.
3. Restart Your Computer and Monitor
Sometimes, a simple restart can resolve the issue of the input signal not found on your HP monitor. If there is a temporary glitch in the system or video output, restarting both the computer and monitor can help refresh their settings and re-establish the connection.
How to fix this:
- Turn off both the computer and monitor.
- Unplug the monitor from the power source and wait for 30 seconds.
- Power on the monitor first, then turn on the computer.
- If you are using laptop with external monitor or multiple monitors, ensure the laptop or main computer is powered on before the external monitor.
Restarting your computer and monitor can help re-sync their settings and fix issues with the input signal not being recognized.
4. Check the Graphics Card and Display Settings on Your Computer
If you’re still seeing the input signal not found error on your HP monitor, the issue may lie with your graphics card or display settings. Your computer’s graphics card may not be properly sending the signal to the monitor. It’s also possible that your display settings on Windows or Mac are misconfigured.
How to fix this:
- Check for driver updates: Go to Device Manager (on Windows) and check for any issues with the graphics card. Right-click on the graphics card and choose Update Driver.
- Set the correct display output: On Windows, right-click the desktop and select Display Settings. Make sure your monitor is detected and the display is set to Extend, Duplicate, or Second screen only depending on your preference.
- Test with another device: If possible, connect your HP monitor to another computer or device (like a laptop or gaming console) to check if the issue is with the graphics card.
By updating your graphics drivers and checking your display settings, you can ensure your computer is properly sending the signal to the HP monitor.
5. Perform a Power Cycle on Your HP Monitor
In some cases, performing a power cycle on your HP monitor can help resolve the input signal not found error. A power cycle resets the internal components of the monitor and clears temporary glitches that may be preventing the signal from being received.
How to fix this:
- Turn off the monitor and unplug it from the power source.
- Wait for 30 seconds to 1 minute before plugging it back in.
- Turn on the monitor and check if the signal is now being received.
Power cycling can help reset the monitor and fix any temporary signal detection issues.
6. Test the Monitor with Another Device
If your HP monitor is still not receiving a signal, testing it with another device can help you determine whether the issue is with your monitor or your computer. By connecting the monitor to a different device, you can see if the problem lies with your computer’s video output or if it’s the monitor itself that is malfunctioning.
How to fix this:
- Connect your HP monitor to another device, such as a laptop, gaming console, or another PC using the same HDMI, DisplayPort, or VGA cable.
- If the monitor works fine with the second device, the issue likely lies with your computer’s video output, such as the graphics card or cable.
- If the monitor still doesn’t display the signal from the second device, the monitor itself may be defective, and you might need to consider repairs or replacement.
By testing with another device, you can rule out the possibility of a faulty monitor and focus on troubleshooting the computer’s connection.
7. Update or Reinstall Your Graphics Drivers
An outdated or corrupted graphics driver can often be the root cause of the input signal not found error. Without the right driver, your computer’s graphics card may not be sending the correct signal to the monitor, resulting in no display output.
How to fix this:
- On Windows, open Device Manager by right-clicking the Start menu and selecting Device Manager.
- Find your graphics card under the Display adapters section.
- Right-click the graphics card and select Update driver to install the latest updates automatically.
- If updating doesn’t help, you can also try uninstalling the driver and reinstalling it from the manufacturer’s website (e.g., NVIDIA, AMD).
By updating or reinstalling your graphics driver, you ensure your computer is sending the proper video signal to your HP monitor, which could solve the issue of input signal not found.
8. Check the Resolution and Refresh Rate Settings
Sometimes, the monitor may show the input signal not found message if your computer’s resolution or refresh rate is incompatible with your HP monitor. A high resolution or an unsupported refresh rate could prevent the monitor from displaying the signal properly.
How to fix this:
- Right-click on the desktop and select Display Settings (on Windows).
- Scroll down to Advanced display settings and check the resolution and refresh rate.
- Set the resolution to a supported setting for your HP monitor (typically 1920×1080 for Full HD, 2560×1440 for 2K, or 3840×2160 for 4K).
- Adjust the refresh rate to one that is compatible with your monitor (commonly 60Hz, but check your monitor’s specifications).
By adjusting the resolution and refresh rate to match what your HP monitor supports, you can eliminate any conflicts that might be causing the input signal not found error.
9. Check for Power Issues with the Monitor
Another potential cause for the input signal not found error could be related to power issues. If your HP monitor is not getting sufficient power, it might not be able to process the signal from your computer. This can happen if the power cord is loose or the power outlet is malfunctioning.
How to fix this:
- Make sure the monitor’s power cable is securely plugged into both the monitor and the power outlet.
- Test the power cable by plugging the monitor into a different outlet or using a different power cable if available.
- If the monitor has an LED indicator light, check if it’s glowing properly to indicate it’s receiving power.
Ensuring that the monitor is receiving power is a simple but often overlooked step in fixing the input signal not found issue.
10. Reset the Monitor to Factory Settings
If none of the previous fixes have worked, resetting your HP monitor to its factory settings might help. This will restore the monitor’s settings to their default configuration, eliminating any issues caused by incorrect display settings or internal glitches.
How to fix this:
- Press the Menu button on your HP monitor to access the on-screen display (OSD).
- Navigate to the Factory Reset option in the menu (this might be under Settings or System).
- Confirm the reset, and the monitor will restore its default settings.
After performing a factory reset, check if your monitor is now receiving the input signal correctly from your computer.
Frequently Asked Questions (FAQs) About “Input Signal Not Found” on HP Monitors
1. Why does my HP monitor keep showing the “Input Signal Not Found” error, even though everything is connected properly?
If your HP monitor shows the input signal not found message despite proper connections, the issue could be caused by incorrect input source settings, a faulty HDMI cable, or an incompatible graphics card output. Double-check that the monitor’s input source matches the cable you’re using (e.g., HDMI, DisplayPort, or VGA). Additionally, check if the graphics drivers are up-to-date and ensure your computer’s display settings are correctly configured.
2. How do I fix the “Input Signal Not Found” issue on my HP monitor when using HDMI?
If your HP monitor is showing input signal not found when connected via HDMI, the problem could be related to the HDMI cable or the monitor’s input settings. To fix this, try using a different HDMI cable to rule out a damaged cable. Also, make sure the monitor is set to the correct HDMI input source. If the issue persists, check your computer’s graphics settings to ensure the output is compatible with your monitor.
3. My HP monitor shows “Input Signal Not Found” when connected to my laptop. What can I do to fix it?
If your HP monitor is not receiving a signal from your laptop, check if the laptop’s display output settings are configured correctly. On Windows, go to Display Settings and select the Extend or Duplicate display option. Also, ensure that the HDMI or DisplayPort cable is securely connected. If the laptop’s graphics card isn’t detecting the monitor, updating or reinstalling the graphics drivers may help resolve the issue.
4. Why does my HP monitor display “Input Signal Not Found” after I change the resolution or refresh rate?
Changing the resolution or refresh rate on your computer might result in the HP monitor displaying input signal not found if the settings are incompatible with your monitor’s capabilities. To fix this, reset your display settings to a lower resolution and refresh rate that your monitor supports. You can check the monitor’s manual or specifications for compatible settings.
5. How can I test if the issue with my HP monitor is related to the monitor or my computer?
To determine if the input signal not found issue lies with your HP monitor or your computer, try connecting the monitor to another device, such as a laptop or a gaming console. If the monitor works fine with another device, the problem is likely with your computer’s video output or settings. If the monitor still doesn’t display the signal, the issue may be with the monitor itself or the cable being used.