14 Best Ways to Fix Brightness keys Not Working on PC Keyboard

One of the most frustrating things that can happen while using your computer is when your brightness keys suddenly stop working. This can happen for a number of reasons, and it can be difficult to pinpoint the exact cause. Regardless of the reason, it can be incredibly inconvenient to have to adjust your screen brightness manually every time you want to change it.

Fortunately, there are a number of potential solutions that you can try to fix the issue. In this post, we’ll explore some of the most common causes of brightness key malfunctions and walk you through the steps you can take to get your keys working again. We’ll cover both software and hardware solutions, as well as tips for troubleshooting and preventing similar issues in the future.

These techniques should assist you in troubleshooting and resolving keyboard issues, whether you’re using a desktop computer or a laptop.

So, if you’re ready to get your Brightness keys back up again, read on!

Fix #1: Shut Down or Restart Your Computer to fix the “Brightness keys Not Working” Problem

Restarting your computer is one of the most fundamental troubleshooting techniques that can help resolve a variety of software and hardware issues, including malfunctioning Brightness keys.

Restarting your computer clears its memory and reloads all drivers and system files, which can often address issues caused by software glitches or conflicts.

When your Brightness controls stop working, there could be a problem with the driver or software that controls them. Restarting your computer allows these drivers and the software responsible for Brightness control to be reloaded, which may help to resolve the issue.

• The steps to restart a Windows PC are simple: Click the “Start” button, select the power icon, and then choose the “Restart” option.
• To restart a Mac PC, click on the Apple icon in the top left corner of the screen, select the “Restart” option, and then confirm by clicking “Restart.”

Restarting your computer is just to refresh your computer and may not resolve the problem with your Brightness controls. So don’t worry if it doesn’t work yet. Try some of the other methods described in this blog post.

Fix #2: Confirm Whether It Is a Hardware Problem by testing a different keyboard or adjusting the brightness manually

It is tempting to begin random fixes without a clear understanding of why the Brightness keys are not working. You first need to take the time to determine whether the problem is the keyboard hardware or software. If you make that your starting point, your work will be easier and less frustrating.

The easiest way to confirm if the problem is Hardware related is to try the Brightness keys on a different keyboard on the same computer to see if it works. And if it turns out working fine on this other keyboard, it means your keyboard is not in good condition. Some of the guides here may help fix a faulty keyboard.

Another way is to manually adjust the brightness. If it works, then it means the issue could be a hardware-related cause. Below are the steps to manually adjust your computer brightness:

To Manually Adjust Brightness On Windows:

1. Right-click on your desktop and select “Display settings” from the dropdown menu.
2. Under the “Brightness and color” section, use the slider to adjust the brightness to your desired level.

To Manually Adjust Brightness On Mac:

1. Click on the Apple menu and select “System Preferences.”
2. Click on “Displays.”
3. Use the brightness slider to adjust the brightness to your desired level.

However, if after trying a different keyboard or adjusting the brightness manually you see no changes, it means the issue is software related, which we will address here.

Fix #3: Make sure the keyboard is well Connected

If you’re using an external keyboard and your Brightness keys are not working, it’s possible that your keyboard is not properly connected to your computer. This can happen if the keyboard is not plugged in all the way or if the USB port on your computer is not functioning properly.

To address this issue, try the following steps:

1. Check the USB Connection: check if your keyboard is properly connected to your computer. Make sure that the USB cable is firmly plugged into the USB port on your computer. If your keyboard has a wireless connection, make sure that it’s properly paired with your computer.
2. Test another USB port: If your keyboard is properly connected and you’re still having issues, try plugging it into another USB port on your computer. Sometimes, certain USB ports may not work properly, so testing a different port can help identify the issue.

Fix #4: Learn how to use the Brightness keys properly

It’s possible that you may not know how to properly use the Brightness keys on your keyboard to adjust the computer’s Brightness. This can make it seem like the keys are not working when in fact, they’re simply not being used correctly.

On some keyboards, the Brightness keys are secondary keys, meaning that they require an additional key to be pressed for them to function. This is common on laptop keyboards, where space is limited, and the Brightness keys share space with other keys.

To properly use the secondary Brightness keys on your keyboard, follow these steps:

1. Locate the Brightness keys: Locate the Brightness keys on your keyboard. These keys are usually located on the top row keys and are labeled with Brightness icons such as small and big sun symbols.
2. Locate the FN key: This is the key that needs to be pressed along with the Brightness key for it to function. This key is labeled with “Fn”  and is usually located between the Ctrl and the Windows Logo keys at the bottom left corner of the keyboard.
3. Press and hold the FN key, then press the Decrease Brightness or Increase Brightness key. This will increase or decrease the Brightness as you press these keys.

By following the steps outlined above, you can properly use these keys and adjust the computer’s Brightness to your desired level.

Fix #5: Work on the Display Drivers and Settings

If your brightness keys are not working on your PC keyboard, it could be due to issues with your display driver. A display driver is a software component that allows your computer to communicate with your display hardware, and if the driver is outdated, corrupted, or missing, it can cause various display-related issues, including problems with brightness control.

Reinstalling Display Driver

One solution to fix the brightness key issue is to reinstall the display driver. Here’s how to do it:

1. Press the Windows key + X key on your keyboard and select “Device Manager” from the dropdown menu.
2. Find the “Display adapters” category and click the arrow to expand it.
3. Right-click on the display adapter and select “Uninstall device.”
4. Follow the prompts to uninstall the driver.
5. Restart your computer.
6. Once your computer has restarted, Windows will automatically install the latest display driver.

Alternatively, you can manually download and install the latest display driver from the manufacturer’s website.

Updating Display Driver

If you’re not sure if your display driver is the problem or if you’ve already tried reinstalling it and the brightness keys still aren’t working, updating the driver may be the next step.

1. Open the Device Manager as described above.
2. Find the “Display adapters” category and click the arrow to expand it.
3. Right-click on the display adapter and select “Update driver.”
4. Follow the prompts to search for and install the latest driver.

Preventing Display Driver Issues

To prevent display driver issues from causing brightness key problems in the future, it’s a good idea to keep your drivers up to date. You can do this by regularly checking for and installing updates or by enabling automatic driver updates in your system settings.

Additionally, be cautious when downloading software or updates from third-party websites, as these can sometimes include outdated or corrupted drivers.

Fix #6: Work on the Keyboard Drivers and Settings

The Brightness keys failure may also be due to driver issues. So, you need to take some time to review or inspect the keyboard drivers and settings.

At times, a typical occurrence is that the driver that helps manage your keyboard may be having issues due to reasons that include:

• The installation of third-party software.
• Switching off your computer without using the recommended shutdown command.

You can start by updating or reinstalling the keyboard driver using these straightforward steps:

1. On the Search Bar next to the Windows Icon on the left-hand side of your screen, type “Device Manager.”
2. Click “Device Manager” when it appears among the Options on the Search Results.
3. Find Keyboards on the list, then click on the arrow icon, which presents a list of keyboards.
4. Select the specific keyboard with an issue and Right Click.
5. Tap Uninstall Device.
6. Reboot the Computer.
7. Windows will then automatically identify the uninstalled keyboard and will, in turn, reinstall the latest driver for that specific keyboard.

Fix #7: Try an Older Version of the Keyboard Driver.

If, after updating or reinstalling the keyboard driver, you are still not able to get the Brightness keys working again, the next fix to try is to install an older version of the keyboard driver.

To do so:

1. Press the Windows Key and R at the same time to open the Run box.
2. Type “devmgmt.msc” and hit Enter.
3. Find “Keyboards” and click to expand it.
4. Right-click on the driver and choose “Update driver.”
5. Choose “Browse my computer for drivers.“
6. Select “Let me pick from a list of available drivers on my computer.”
7. Choose an older driver from the list and click “Next.”
8. Wait for the process to finish, then restart your computer and check if the issue is fixed.

Fix #8: Disable Sticky Keys on Windows

Sticky Keys is a Windows feature that enables users to perform keyboard shortcuts by pressing one key at a time rather than holding down multiple keys simultaneously.

Although this feature can be helpful for individuals who have trouble holding down multiple keys at once, it can cause issues with the Brightness keys and other keys on the keyboard.

If you have enabled Sticky Keys on your Windows computer and are experiencing problems with the Brightness keys not functioning correctly, this could be due to Sticky Keys intercepting the key press and altering its behavior.

As a modifier key, the Brightness keys are sometimes used in combination with other keys to perform various functions such as copying and pasting text. If Sticky Keys is activated, it may interfere with the Brightness keys’ functionality and prevent it from working correctly.

To resolve this issue, you can disable Sticky Keys on your computer. Follow these steps to do so:

1. On the Search Bar next to the Windows Icon on the left-hand side of your screen, type “Control Panel.”
2. Click “Control Panel” when it appears among the Options on the Search Results.
3. Select the Ease of Access section.
4. Under the Ease of Access Center, tap on “Change How Your Keyboard Works.”
5. Turn off Use Sticky Keys by clicking the Toggle Bar.

Fix #9: Disable Filter Keys on Windows

Filter Keys is an accessibility feature in Windows that helps people who may have difficulty holding down multiple keys at once by making the keyboard more user-friendly.

When the Filter Keys feature is enabled, Windows will ignore brief or repeated keystrokes and will not respond to keystrokes that are held down for too long. This feature can help prevent accidental keystrokes and make it easier for people with motor impairments or disabilities to type on a computer.

So, if you are trying to use the Brightness keys with some other key(s) with no success, it means that having the filter keys enabled is one possible reason your Brightness keys may have some issues. Follow the steps below to turn off filter keys on your windows:

1. On the Search Bar next to the Windows Icon on the left-hand side of your screen, type “Control Panel.”
2. Click “Control Panel” when it appears among the Options on the Search Results.
3. Select the Ease of Access section.
4. Under the Ease of Access Center, tap “Change How Your Keyboard Works.”

Turn off Use Filter Keys by swiping the Toggle Bar.

Fix #10: Clean Your Keyboard to Remove Accumulated Dust and Debris

When was the last time you cleaned your keyboard? Most times, when Computers experience issues like the Brightness keys not working, the first thought is that it may be a hardware problem or something complex.

But it is essential to note that simple things, such as the accumulation of dust or debris over time, can lead to the failure of some parts of a keyboard.

It is typical for dirt to accumulate over time which may easily be due to some of your habits. If you often eat while using your computer, crumbs may fall and find their way into the keyboard, which may cause keyboard issues.

Too much dust or debris may hinder the proper functioning of your keys as they may get clogged over time. Here are some of the ways you can clean your keyboard:

• Using a small brush
• Use a microfiber cloth to wipe the keys and remove any debris gently.
• Spraying a can of compressed air in between the key spaces
• Apply some rubbing alcohol on a soft cloth to remove any dried liquid or dirt stuck on or within the keys on your Computer.

It is recommendable to have a proper Computer maintenance routine to ensure your gadget is in good condition. A Computer in good condition will serve its purpose for an extended period. You can schedule the computer maintenance routine and scatter the dates throughout the year. It could be once in four or six months.

Aside from that, you can also avoid eating while using your computer to avoid the accumulation of dirt under the keys of your computer keyboard.

The Recommendable Way to Clean a Keyboard Without Damaging It

You can follow these steps and guidelines as you clean your Computer to avoid damaging your gadget:

• Ensure you first switch off your Computer and disconnect it from any power source for your safety and that of the computer.
• Flip your Computer so that the keyboard is upside down to make it easy for any debris to fall off. You can also use cleaning slime or the sticky side of the tape to eliminate any additional debris.
• Use a compressed air blower to blow out any dust.
• Apply some rubbing alcohol on a soft cloth and wipe through the entire keyboard. Use a reasonable amount of rubbing alcohol to avoid soaking the keyboard.
• Use a dry cloth once done to give your keyboard a polished look.
• Give the keyboard time to dry before using it again.

If cleaning the keyboard doesn’t solve the problem, explore the next options.

Fix #11: Check for Malware or Virus

Malware and Viruses disrupt the usual functioning of your computer. Your keyboard may be affected as a result. No specific virus may be pointed out as one to cause keyboard failure since a keyboard has no ROM.

If the Brightness keys, or some keys or all the keys on the computer keyboard are not working, the root problem could be malware or a virus.

Scanning and eliminating malware or a virus from your Windows PC is possible. You only need to follow these steps:

1. On the Search Bar next to the Windows Icon on the bottom left-hand side of your screen, type Windows Security.
2. Select Windows Security when it appears among the options presented.
3. Click on the Virus and Threat Option.
4. Tap Scan.
5. Click Windows Defender Offline scan.
6. Tap Scan Now to kickstart the process.

The scan may take a few minutes to do a thorough run, so ensure you exercise patience as you await the completion.

After the whole process is done, your Windows PC will restart. The scan will work as needed by detecting and removing any malware or virus.

Thus, if the problem of the Brightness keys not working was due to a virus, it should start working again.

Fix #12: Use an External Keyboard

Sometimes fixing something involves having alternative options. Getting an external keyboard should be among the options to consider when the Brightness keys on your computer stops working.

An external keyboard will enable you to go about your normal operations or processes as you look for ways to fix the in-built Computer keyboard. It will save you time and agony. Aside from that, it also presents numerous benefits.

Benefits of an External Keyboard

Here are some benefits of an external keyboard:

1. Easily Replaceable – An external keyboard is easily replaceable, so you need not worry about your computer keyboard malfunction disrupting your everyday operations. For example, you can immediately replace an external keyboard by ordering online from a well-known platform like Amazon.
2. Preserves your inbuilt Laptop keyboard – If you own a Laptop, by using the external keyboard for a while, you are protecting the inbuilt Laptop keyboard from wear and tear. You get to preserve your inbuilt keyboard as you perform all typing tasks on the external keyboard.
3. Prevents Wrist Injuries – If you spend a huge chunk of your day typing, there is a risk of developing wrist tendonitis. It is a condition that develops when the tendons in your wrist are in constant motion. The design of an external ergonomic keyboard is intended to provide users with a pleasant typing experience. Your arms, hands, and wrists will not strain as you type.

Fix #13: Fix Brightness keys problems with Troubleshooter

Another potential solution to this issue is to run the Hardware and Devices Troubleshooter on your Windows computer. This tool can help to diagnose and fix hardware problems, including issues with the keyboard.

The Hardware and Devices Troubleshooter is a built-in tool that can help diagnose and fix hardware problems on any computer.

If you’re experiencing problems with your keyboard, such as a non-functional Brightness keys, running the Hardware and Devices Troubleshooter can be a helpful solution.

Here are the steps to follow:

• Step 1: Open the Settings Menu

Click on the Start menu, and then click on the gear icon to access the Settings menu.

• Step 2: Navigate to the Troubleshoot Settings

In the Settings menu, click on the “Update & Security” option. Then, select “Troubleshoot” from the menu on the left.

• Step 3: Run the Hardware and Devices Troubleshooter (Windows 10)

Under the “Find and fix other problems” section, click on “Hardware and Devices” and then click on “Run the troubleshooter.” Follow the on-screen instructions to diagnose and potentially fix any issues with your keyboard.

• Step 3: Run the Hardware and Devices Troubleshooter (Windows 10)

In the Settings app, click on the “System” option. Then, select “Troubleshoot” from the menu on the left-hand side. Under the “Other troubleshooters” section, click on the “Run” button next to the Keyboard hardware to start the troubleshooter.

• Step 4: Restart Your Computer

Once the Troubleshooter has completed its diagnostics, restart your computer to apply any necessary changes.

Once the Hardware Troubleshooter has completed its diagnostics, restart your computer to apply any necessary changes.

If the Hardware Troubleshooter does not resolve the issue with your Brightness keys, you may need to check our other potential solutions discussed in this post.

Fix #14: Consult a Computer Technician

Consulting a computer should be your last resort when nothing else from the options mentioned works.

The option is recommendable because a professional will inspect and conduct any necessary tests to find reason why your keyboard Brightness keys are not working. In the process, a computer technician may find other issues, so by the time they are done, your computer keyboard will be in a good state, and the Brightness keys will be up and working again.

A good Computer technician will also advise you on whether to do a repair or a replacement. Their knowledge and expertise make it easy for them to know what would work best for your computer.

When looking for a reliable Computer technician, you should consider the costs involved. Also, seek recommendations from family and friends before settling on a computer technician. You can also look for one online but make sure you do your due diligence.

Benefits of Consulting a Professional Computer Technician

A professional Computer technician will give you relevant advice that may help you maintain your computer for an extended period. You will also get some insights on the most probable cause of the failed keyboard. It would help you avoid some things that lead to failure.

A professional Computer technician will help save you time, mainly if you depend on your computer for essential work. A professional will most likely work with your timelines or give you a period within which they can get the work done.

Some professional Computer technicians offer a warranty period. A warranty period means that if your keyboard malfunctions within that period, the technicians will repair it cost-free. A warranty period will make you less worried because it is a reliable backup plan.

Wrapping Up on Brightness Keys Not Working

It must be frustrating to open your computer to do some work and discover that the Brightness keys are not working. The article guides you on some possible reasons for keyboard failure. You also get a list of ways to fix the issue.

Some of the common problems you may encounter include some or all of the keys of your keyboard not working. It is a normal occurrence, meaning you do not need to panic or think you are out of luck. You only need to realize that it could be a software or hardware issue.

Some significant causes of keyboard failure include physical damage, accumulation of dirt and debris, an outdated driver, or improper settings.

Most issues around Computer keys are fixable, as numerous ways exist to resolve the issue. You can first take up the challenge and start troubleshooting or carry out the above series of activities to help solve the problems.