Troubleshooting Acer Monitor: Input Not Supported Error

If you’ve ever encountered the ‘Input Not Supported’error on your Acer monitor, you know how frustrating it can be. This error message typically appears when your monitor is unable to display the input signal from your computer, leaving you with a blank screen and no idea how to fix the problem.

Thankfully, there are a few simple troubleshooting steps you can take to get your Acer monitor back up and running in no time.

In this article, we’ll walk you through the process of troubleshooting the ‘Input Not Supported’error on your Acer monitor. We’ll start by helping you understand what this error message means and why it might be appearing on your screen. From there, we’ll guide you through a series of troubleshooting steps to help you identify and fix the underlying problem, whether it’s a loose cable, a resolution issue, or a driver problem.

By the end of this article, you’ll be equipped with the knowledge and tools you need to resolve the ‘Input Not Supported’error and get your Acer monitor back to its full working order.

Understand the ‘Input Not Supported’ Error

Don’t panic if you see the ‘Input Not Supported’ error on your Acer monitor – it just means there’s a problem with the signal the monitor is receiving. This error usually pops up when the graphics card on your computer or laptop is sending the wrong signal to the monitor. It can also occur if the signal is not strong enough or if the resolution and refresh rate settings are not supported by the monitor.

To resolve this issue, you need to first check the cable connections between your computer and the monitor. Make sure that the cables are securely connected to both devices. If the cables are loose, the signal may not be transmitted properly, resulting in the ‘Input Not Supported’ error.

If the cables are properly connected, the next step is to ensure that the graphics card driver on your computer is up to date. An outdated driver can cause compatibility issues between the graphics card and the monitor. You can check for updates on the manufacturer’s website or through the device manager on your computer.

Updating the driver should resolve any compatibility issues and fix the ‘Input Not Supported’ error.

Check Your Cables

Make sure your cables are properly connected to avoid any issues with your monitor display. Loose or disconnected cables can cause the ‘Input Not Supported’ error to appear on your Acer monitor. Check the cables that connect your monitor to your computer to ensure that they’re securely plugged in.

Here are a few things to keep in mind when checking your cables:

  • Make sure that the cable isn’t damaged or frayed. If it is, replace it immediately.
  • Check that the cable is the correct one for your monitor and computer. Different monitors and computers may require different types of cables.
  • Verify that the cable is plugged into the correct ports on your monitor and computer. Double-check the labels on each port to ensure that the cables are connected to the right ones.

If your cables are properly connected and you’re still experiencing the ‘Input Not Supported’ error, try using a different cable to see if that solves the issue. If it doesn’t, you may need to troubleshoot other possible causes, such as your computer’s graphics card or monitor settings.

Adjust Your Resolution Settings

You’ll want to adjust your resolution settings to ensure a clear and visually pleasing display on your Acer monitor. The input not supported error message could be caused by the resolution settings being too high or too low for your monitor. To fix this, you need to adjust your resolution settings to match those of your monitor.

To adjust your resolution settings, right-click on your desktop and select "Display settings."From there, you can scroll down to "Advanced display settings"and select your preferred resolution from the drop-down menu. It’s important to note that not all resolutions will be compatible with your monitor, so make sure to choose the one that is recommended by Acer.

Here’s a helpful table to guide you in selecting the appropriate resolution for your Acer monitor:

Monitor Size Recommended Resolution
19 inches 1280 x 1024
21.5 inches 1920 x 1080
24 inches 1920 x 1080
27 inches 2560 x 1440

By adjusting your resolution settings to match those of your Acer monitor, you can eliminate the input not supported error message and enjoy a clear, high-quality display. Remember to choose the resolution that is recommended for your specific monitor size to ensure the best possible viewing experience.

Update Your Drivers

If you want to ensure that your Acer monitor is running smoothly and efficiently, it’s important to update your drivers regularly. Drivers act as a bridge between the hardware and software of your computer, and updating them can often solve issues such as the ‘input not supported’ error on your Acer monitor.

Here are some tips to help you update your drivers:

  • Check your computer’s manufacturer website for driver updates. Acer provides driver updates on their website, and you can search for your specific model and download the latest drivers.

  • Use a driver update software. There are many third-party software programs available that can scan your computer and automatically update your drivers. Some popular options include Driver Booster and Driver Easy.

  • Use Windows Update. In some cases, Windows Update may have driver updates available for your computer. You can check for updates by going to Settings > Update & Security > Windows Update > Check for Updates.

  • Uninstall and reinstall your drivers. If you’re experiencing issues with your Acer monitor, you can try uninstalling and reinstalling the drivers. To do this, go to Device Manager, find your monitor, right-click on it, and select Uninstall. Then, restart your computer and the drivers will automatically reinstall.

By updating your drivers, you can often solve issues with your Acer monitor and ensure that it’s running at its best. Make sure to check for updates regularly and use the tips above to keep your computer and monitor working smoothly.

Restart Your Computer

After a long day of work, sometimes the best thing you can do to fix any computer issues is simply restarting it. This might sound too simple, but it works wonders.

When you restart your computer, it clears out any temporary files that might be causing the Input Not Supported error on your Acer monitor. It also resets your computer’s settings, which means any changes you made to your display settings will be undone, giving you a fresh start.

To restart your computer, click on the Start menu, and select the Restart option. Your computer will shut down and restart automatically. Once it’s back up, check if the Input Not Supported error is still there. If it is, move on to the next troubleshooting step. If not, then the problem might have been caused by a temporary glitch, and you can continue using your computer and monitor without any further issues.

Restarting your computer might not seem like a big deal, but it can often solve a lot of issues, including the Input Not Supported error on your Acer monitor. It’s a quick and easy solution that doesn’t require any technical skills or knowledge. So, if you’re facing this error, give it a try before moving on to other troubleshooting steps. Who knows, it might just do the trick!

Test Your Monitor

Now that you’ve restarted your computer and the issue persists, it’s time to test your monitor. This will help you confirm whether or not the issue is with your monitor or your computer.

Here’s what you need to do:

First, unplug the power cord and all other cables from your monitor. Wait for a few minutes before plugging them back in. Make sure all the cables are connected properly and securely.

Turn on your monitor and check if the ‘input not supported’ error message still appears.

If the error message persists, try connecting your monitor to another computer or laptop. If the error message disappears, then the issue might be with your computer or graphics card. However, if the error message still appears, then the issue is most likely with your monitor.

Testing your monitor is an essential step in troubleshooting the ‘input not supported’ error. It will help you determine the root cause of the issue and guide you towards the appropriate solution. So, take the time to test your monitor and confirm whether or not it’s the source of the problem.

Contact Technical Support

To resolve the issue and get back to using your computer smoothly, it’s time to reach out to technical support for assistance. Acer provides technical support for their products, and you can easily contact them for help. Here’s how you can reach out to Acer technical support:

Method Description
Phone You can call Acer technical support at 1-866-695-2237. They are available from Monday to Friday, 8am to 6pm CST.
Chat You can chat with a technical support representative through Acer’s website. This service is available 24/7.
Email You can email Acer technical support at any time. They will respond to your query as soon as possible.

When you contact Acer technical support, make sure to provide them with all the necessary information about your Acer monitor and the input not supported error. They will guide you through the troubleshooting process and help you resolve the issue. If the problem persists, they may suggest sending the monitor for repair or replacement.

Don’t hesitate to contact Acer technical support for assistance with your monitor’s input not supported error. They have a team of experts who can help you resolve the issue and get back to using your computer smoothly. Use the provided methods to reach out to them and provide all the necessary information to ensure a quick and efficient resolution.


In conclusion, troubleshooting the "Input Not Supported"error on your Acer monitor involves a few simple steps that you can take on your own. First, make sure to understand what the error message means and check your cables for any loose connections.

Then, adjust your resolution settings or update your drivers to ensure compatibility with your monitor. If the issue persists, restarting your computer or testing your monitor on another device may help isolate the problem.

If all else fails, contacting technical support can provide additional assistance and guidance. By following these troubleshooting steps, you can get your Acer monitor up and running smoothly again in no time.