If you’re encountering the frustrating issue of your Asus laptop brightness not working, you’re not alone. In this post, I’ll walk you through the steps to troubleshoot and resolve this common problem.
Try these methods
Method 1: Restart Your PC
Method 2: Change the Brightness Using a Different Way
Method 3: Check for Windows Update
Method 4: Re-enable Your Graphics Device and Generic PnP Monitor
Method 5: Reinstall Your Display Driver and Generic PnP Monitor Driver
Method 6: Update Graphics Drivers
Method 7: Adjust Power Settings
Method 8: Reset BIOS
Method 1: Restart Your PC
First thing first. Before heading to the advanced methods, the first thing you should try to do is simply restarting your laptop. Sometimes, a simple restart can work like a charm.
Method 2: Change the Brightness Using a Different Way
There are multiple ways that you can use to change the brightness for your Asus laptop. You may use a way that happens not to work. In this case, you can choose to use another way to adjust the brightness.
Following are the three most common ways that can be used to change the brightness. You can try the ways that you haven’t tried yet:
Use Functions Keys
Most Asus laptops come with function keys that allow you to adjust the brightness. Try using these keys (usually Fn+F5 or Fn+F6) to change the brightness.
If available, you can check the laptop’s manual for what functions keys allow you to adjust the brightness. Or you can contact Asus customer support for the info.
Use Windows Settings
You can try adjusting brightness through Windows settings. Here’s how to do that:
1) Press Windows + X keys to open the Quick Link menu, then select Settings.
2) Select System.
3) Click on Display on the left side, and on the right side, you’ll see the Change brightness for the built-in display slider at the top. Move the slider to change the brightness.
From Power Options
Many users have reported that adjusting brightness from Power Options works for them when the other two ways fail to work.
To adjust brightness from Power Options, follow these steps:
1) Press Windows + R keys to invoke the Run box, type ‘powercfg.cpl’ and press Enter to open the Power Options menu.
2) In the Power Options menu, click on Change plan settings.
3) Click on Change advanced power settings.
4) Expand ‘Display’, then expand ‘Display brightness’ and put a value to On battery and Plugged in per your needs, for example, 100%.
5) Continue to expand ‘Dimmed display brightness’ and put a value to On battery and Plugged in.
6) Check and make sure Enable adaptive brightness is turned off.
7) Once done, click the Apply button, then you should see the brightness adjusted to the level you previously set.
Method 3: Check for Windows Update
Check for Windows Update and ensure you have all the recent updates installed. Follow these steps:
1) Press Windows + S keys to open the search box.
2) Type ‘windows update’ and select Check for updates.
3) Click on Check for updates and follow the on-screen instructions to install the available updates. If you see View optional updates, select it too, and then install all optional updates.
4) Once you’re done with installing all updates, restart your laptop and check to see if you can adjust the brightness.
Method 4: Re-enable Your Graphics Device and Generic PnP Monitor
A simple fix to the problem is to re-enable your graphics device and generic PnP Monitor. To do so:
1) Open Device Manager.
2) Expand the ‘Display adapters’ category, then right-click on your graphics card device (if you have two graphics card devices, right-click on the integrated one) and select Disable device.
Note: If the device is already disabled, you won’t see Disable device but Enable device instead. In this case, select Enable device.
3) Right-click on the graphics card device again and select Enable device.
4) Expand the ‘Monitors’ category and repeat the above steps to re-enable Generic PnP Monitor.
5) Check to see if the brightness can change.
If re-enabling the devices doesn’t work, try reinstalling the drivers. See Method 5.
Method 5: Reinstall Your Display Driver and Generic PnP Monitor Driver
Follow these steps to reinstall your display driver and Generic PnP Monitor Driver.
1) Access Device Manager.
2) Expand the ‘Display adapters’ category, then right-click on your graphics card device (if you have two graphics card devices, right-click on the integrated one) and select Uninstall device.
3) Check the box next to Delete the driver software for this device and click the Uninstall button.
4) Repeat the above steps to uninstall the Generic PnP Monitor Driver.
5) Reboot your laptop and Windows will reinstall the drivers.
6) Check to see if the brightness can change.
If the brightness still can’t change, try updating graphics drivers. Continue to try Method 6.
Method 6: Update Graphics Drivers
To fix Asus laptop brightness not working issues, you can try updating graphics drivers. To do so:
1) Access Device Manager.
2) Expand the ‘Display adapters’ category, then right-click on your graphics card device (if you have two graphics card devices, right-click on the integrated one) and select Update driver.
3) Select Search automatically for drivers, then Windows will search and install the available new graphics driver.
4) Once done, reboot your computer and check to see if the problem is resolved.
If the problem persists or Windows returns you with the message ‘The best drivers for your device are already installed’, you can follow the steps below to update the driver using the Microsoft Basic Display Adapter software.
1) Right-click on the graphics card device and select Update driver.
2) Select Browse my computer for drivers.
3) Select Let me pick from a list of available drivers on my computer.
4) Click on Microsoft Basic Display Adapter, and click Next to continue.
5) Windows will install the Microsoft Basic Display Adapter driver.
6) Reboot your Asus laptop and you should be able to adjust the brightness.
Pro Tip: To make your devices work efficiently, it’s crucial to keep device drivers updated. To update your device drivers easily, you can use Driver Easy, which allows you to update drivers with just a few clicks.
Method 7: Adjust Power Settings
Your laptop’s power plan settings can affect brightness control. You can try adjusting Power Settings and see if it helps.
1) Press Windows + R keys to invoke the Run box, type ‘powercfg.cpl’ and press Enter to open the Power Options menu.
2) Select the power plan that suits your needs. The ‘Balanced’ plan is recommended.
Method 8: Reset BIOS
If none of the above methods works, the last resort you can try to do is resetting BIOS.
Firstly, follow these steps to enter BIOS:
1) Press Windows + S keys to open the search box.
2) Type ‘Change advanced startup options’ in the search box and click on the result from the result list.
3) In the Advanced startup section, click Restart now.
4) Continue to click Restart now.
5) After your laptop restarts, select Troubleshoot.
6) Select Advanced options.
7) Select UEFI Firmware Settings.
8) Click Restart. After the restart, your computer will enter BIOS.
In BIOS, follow these steps to restore BIOS settings:
1) Press the hotkey F9 on your keyboard.
2) Click Ok to confirm to load the BIOS optimized defaults.
3) Press the hotkey F10.
4) Click Ok to save and exit BIOS. Then Windows will restart automatically.
5) After entering Windows, check to see if you can adjust brightness.
Above are the methods that you can use to resolve the issue of ‘Asus laptop brightness not working’. Following the steps then you should be able to regain control of your laptop’s brightness. If you’ve encountered other solutions or have any questions, feel free to share them in the comments below.