The proposed article-instructions covers in detail the topic of “adjusting brightness Windows screen 10" and discusses related problems: problems with chipset drivers, graphics adapter and monitor, inoperability of the hardware brightness control key on a laptop/netbook or tray button and special cases with its change.
In almost all cases, of course, with the exception of problems with the hardware brightness button, the source of the problem is the drivers. Depending on the case, this may be systemic software to control the functioning of the graphics card, monitor, and even the chipset of some manufacturers. It is also not uncommon for one of the listed devices to be simply deactivated in the task manager.
Solving the problem with a disabled monitor
When you open the notification panel, there may be no icon for adjusting the brightness, and in the subsection of the parameters called “Screen” the slider for changing the level of this parameter is inactive. This may indicate that the system is missing a monitor at the software level. That is, it can be physically connected and function, but at the driver level it can be deactivated, which is why most of its capabilities are unavailable.
This option is not very common, but the problem is the easiest to solve, so it’s logical to start with it.
1. Call the “Task Manager” using a more convenient method (Win menu → X, search bar).
2. Expand the “Monitors” section and look for the name of your output device or find “Universal PnP monitor” (or something very similar).
If there is a downward arrow next to the display icon on a gray background, this means that the device is disabled at the software level.
3. To activate it, call the “Engage” command in the context menu of the device.
4. Restart Windows 10 and check if the ability to adjust the display brightness is available.
This problem is relevant mainly for laptops from Lenovo and Pavilion, although it is not much less common on computers.
If the problem is not related to a disabled monitor, we move on to the drivers of peripheral devices, which we mentioned at the beginning of the article.
When video card drivers are the culprits
The second most common factor causing difficulties with changing the brightness level in Windows 10 is the source of non-working graphic elements and hardware keys for changing brightness, video adapter drivers are included.
1. The drivers were installed by Windows 10 itself during its installation process, obtained from a driver pack, using software for updating them (Driver Booster) or from an unofficial source.
The solution to the problem is simple: download official driver V manual mode, uninstall unofficial software, for example, using Display Driver Uninstaller, and install it again.
2. It is possible that the system software for Intel Graphics HD is not installed at all, but it is absolutely necessary for the normal operation of the device.
The driver should only be downloaded from the official developer or product support resource.
Such a device is not displayed in the device manager, because it is in the list of hidden ones. To see it, you need to call the “Show hidden devices” command in the “View” main menu item.
3. The video card was turned off in Device Manager (a case similar to the problem with the display).
Using the context menu, we activate the device and reboot.
It is also strongly recommended to visit the monitor settings via context menu desktop, call up the “Screen” menu item, go to its additional options and click on the “Graphics card properties” icon. On the adapter tab, look at its type (first line).
Just in case, it is also recommended to go to the display settings (via the right-click menu on the desktop) → Display → Additional display settings → Graphics adapter properties and see which video adapter is listed on the “Adapter” tab.
If the name of the video card is something like Basic Display Driver, then the reason lies in a disabled device or in the absence of a driver for it. Sometimes such devices are not displayed in the Manager by default, but become visible after activating the “Show hidden devices” option located in the “View” menu item.
Usually, following the instructions given above will solve the problem with changing the brightness level, but there are exceptions. The next chapter is devoted to such special cases.
The source of the problem is the chipset drivers
Like all drivers, the software responsible for the functioning of the chipset, downloaded from a third-party site or obtained through the use of an application to automate the installation of system software, can lead to incorrect functioning and failures in many ways (shutdown, hibernation). First on the list of culprits are Intel drivers, responsible for power management, and ACPI.
We update such drivers with those downloaded from the official resource, despite the fact that the system uses newer versions. Immediately after installing an older version of the software, you should deactivate their automatic update using special utility from Microsoft - Show or Hide Updates.
Disabling automatic driver updates using Windows 10
One of the methods is to exclude some system applications from the automatically downloaded "ten" - use the tool to configure the installation of devices in Windows environment 10. There are two ways to do this, and both require administrator privileges.
Method No. 1
1. Call the Win → X menu using the appropriate keyboard shortcut or the Start context menu.
2. Select the “System” item.
4. Go to the “Equipment” tab.
Method No. 2
1. Call the Control Panel, for example, via Win → X.
2. Go to the “Devices, Printers” applet.
3. Call the context menu of your PC and select “Device installation options”.
Regardless of the option to open the window, a dialog will appear asking you whether you need to automatic download programs from the hardware manufacturer and custom icons, if available for your PC hardware.
Move the checkbox to the “No” option and click “Save” (administrator rights are required for this).
After making changes to the registry, the Update Center will not download or install new versions of drivers.
Problem with TeamViewer and other applications for remote access
Incredibly, many of the users of this program noted that it is also a factor causing the inability to adjust brightness in the “ten” due to the fact that it automatically replaces the display driver with its own (it is displayed as “Standard PnP Monitor”). This was created in order to increase the speed of data exchange.
To resolve the problem, follow the steps given in the instructions if, after updating the display driver and launching TeamViawer or an analogue, it is replaced back to the standard one.
- Call the Task Manager.
- Expand “Monitors”.
- Call “Update drivers” through the device’s context menu.
- We select from the list of drivers installed on the PC.
- Click on the “Universal monitor” item and click “Next”.
After installing it, restart the system.
The source of the problem is the monitor drivers
This advice is relevant for people who use professional and semi-professional displays that require special drivers. Naturally, the standard software included in Windows distribution 10 will not work or will function in a freelance mode.
The way out of the situation is to replace the driver with one downloaded from a display support resource (if there is no Internet, you can use the disk included with the monitor).
Complete order at the software level
If the keyboard has buttons with icons symbolizing brightness, but this parameter is not changed, a couple of factors may be the culprit: drivers and inept use of the buttons.
In the first case, you need to acquire software for your laptop/netbook model by downloading it from official page. If there is no software version for Windows 10, download the driver edition for Windows 8.1. Installing these drivers will likely make other function buttons work as well.
In fact, all laptop manufacturers call these programs differently:
- in Hewlett Packard - this is the HP Software Framework (as an analogue, you can install HP Hotkey Support);
- in Lenovo - Hotkey Features Integration 4 Windows;
- for Dell - QuickSet program;
- To avoid such cases, Asus has developed the ATK Hotkey application.
In the second case, the source of the problem may be user inattention or ignorance. The fact is that there are no separate buttons for increasing and decreasing brightness. They are combined with the function keys F1 - F12, performing the role of both buttons.
The role of the Fx function button is performed by default, and when you press the Fn key, the button is responsible for the action shown on the button below, as in the screenshot, on the F1 and F2 keys.
Let's first figure out whether you can adjust the brightness, not through the keys, but through Windows settings. If you can, then the problem is most likely in the keys themselves or in special software that is missing or was removed after Windows updates 10. If you cannot adjust the brightness through Windows settings, then read below how to fix everything.
The reason is in the video card driver.
One of the common reasons lies in the video card drivers. Namely:
We solve the problem with brightness by disabling the PnP monitor.
This solution to the problem is suitable for those who do not have the brightness adjustment icon active in the panel Windows notifications 10. 
Other reasons for brightness adjustment failure.
Programs like TeamViewer. Many people use this program to remotely configure their computer. The point is that this program additionally installs its own driver for the monitor, which does not support adjusting screen brightness. To correct this misunderstanding:
I also recommend checking your monitor drivers. Maybe you have an unusual monitor, but with additional functions, which are not found on standard monitors. In this case, you need to download the driver specifically for your monitor from the manufacturer’s website.
Not long ago I encountered one very unpleasant problem - on all my laptops the ability to adjust the screen brightness suddenly disappeared. Be it your favorite Fn keys, or the standard brightness slider in the computer settings. The very concept of “brightness” in the screen settings disappeared and the main working machine was stuck in dark mode.
The way out of this situation, as it turned out, is quite simple - the problem lies in the drivers. After scouring the forums, I managed to find a few ideas that led to a simple solution. For the brightness control to work properly, you need to reinstall the driver... no, not the video card, but the monitor!
How to do this in the easiest way?
- Click right click mouse on the empty space of the Desktop, in the menu that opens, select the “Screen Resolution” item.
- In the screen resolution settings we find the “Advanced settings” link - it’s on the bottom right.
- In the window that opens, open the “Monitor” tab, then click on “Properties”. Most likely, the system will ask permission to intervene, we allow it.
- In the window that opens, open the “Driver” tab and click on the “Roll Back” button. Voila, brightness control is back!
- Click on “Ok” several times and enjoy the result.
That's it, kickbacks are saving our lives again!
Important! When using the DRP program, be sure to work in manual and expert mode! Otherwise, in addition to updating drivers, you will also get a ton of useless programs! To do this, when starting the program, check the “Settings” box, select “Expert Mode”, check the monitor driver box and click “Install” at the bottom of the screen. More details in the screenshot below.
Detailed instructions for working with the driver package are available at the link: .
P.S.: having tried to find the cause of such glitches on one of the computers, I noticed that the monitor driver had digital signature from TeamViewer. It is quite possible that the problem lies precisely in this program - it was installed on each of the computers being repaired. It might be worth contacting their tech. support.
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In the Windows operating system, you can adjust the screen brightness without any difficulty. This is done using one of the available methods. However, sometimes malfunctions occur, due to which this parameter simply cannot be adjusted. In this article we will talk in detail about possible solutions problem that has arisen, which will be useful for laptop owners.
First of all, you should understand how the brightness changes on laptops running Windows. There are several different adjustment options, all of which require certain actions.
Function buttons
On the majority keyboard modern devices There are functional buttons that can be activated by pressing Fn + F1—F12 or any other marked key. Often the brightness is changed by a combination of arrows, but it all depends on the equipment manufacturer. Carefully examine the keyboard to ensure that it contains the required function key.
Video card software
All discrete and integrated graphics adapters have software from the developer, where many parameters are finely configured, including brightness. Let's consider the transition to such software using an example "NVIDIA Control Panel":
Standard Windows feature
Windows has a built-in feature that allows you to customize your power plan. Among all the parameters, there is also a brightness configuration. It changes as follows:
In addition to this, there are several more additional methods. Detailed instructions for them are in our other material at the link below.
Solving the problem with adjusting brightness on a laptop
Now that we have understood the basic principles of brightness adjustment, let's move on to solving problems associated with changing it on a laptop. Let's look at solutions to the two most popular problems that users face.
Method 1: Enable Function Keys
Most laptop owners use a key combination to adjust the brightness value. Sometimes when you click on them, nothing happens, which indicates that the corresponding tool is simply disabled in the BIOS or there are no suitable drivers for it. To solve the problem and activate function keys We recommend that you refer to our two articles using the links below. They have everything necessary information and instructions.
Method 2: Update or rollback video card drivers
The second common malfunction that causes failures when trying to change the brightness on a laptop is incorrect operation of the video driver. This happens when updating/installing the wrong version. We recommend updating or rolling back the software to a previous version. A detailed guide on how to do this can be found in our other materials below.
Owners of an operating room Windows systems 10, we advise you to refer to the article from our other author, where you will find instructions on how to fix the problem in question in this particular version of the OS.
This instruction details several ways to correct the situation when brightness adjustment does not work in Windows 10 - neither using a button in the notification area, nor adjusting in the screen settings, nor using the brightness reduction and increase buttons, if provided on the keyboard of a laptop or computer (option when only the adjustment keys do not work is considered as a separate point at the end of the manual).
In most cases, the inability to adjust brightness in Windows 10 is associated with driver problems, but not always with the video card: depending on the specific situation, it could be, for example, monitor or chipset drivers (or even a completely disabled device in the device manager).
The next most common reason for brightness adjustments not working in Windows 10 is problems with installed drivers video cards. More specifically, this can be caused by the following points:
After these steps, restart your computer before checking whether changing the screen brightness works.
Just in case, I also recommend going to the screen settings (via the right-click menu on the desktop) - Screen - Additional screen settings - Graphics adapter properties and see which video adapter is listed on the “Adapter” tab.
If you see there Microsoft Basic Display Driver, then the problem is clearly either the video adapter is disabled in the device manager (in the device manager, in the “View” item, also turn on “Show hidden devices” if problems are not immediately visible), or some kind of driver failure. Unless you take into account hardware problems (which rarely happens).
Other reasons why Windows 10 brightness adjustment may not work
As a rule, the options described above are sufficient to fix the problem with the availability of brightness adjustments in Windows 10. However, there are other options that are less common, but occur.
Chipset drivers
If you have not installed the chipset driver on your computer, especially your laptop, from the official website of the laptop manufacturer, as well as additional drivers hardware and power management, many things (sleep and wake, brightness, hibernation) may not work properly.
First of all, pay attention to the Intel Management Engine Interface, Intel or AMD Chipset driver, ACPI drivers(not to be confused with AHCI).
Attention: the following point can be applied not only to TeamViewer, but also to other programs remote access to the computer.
TeamViewer
Many people use TeamViewer, and if you are one of the users of this program (see), then please note that it can also cause unavailability of adjustments Windows brightness 10, due to the fact that it installs its own monitor driver (displayed as Pnp-Montor Standard in the device manager, but there may be other options), designed to optimize connection speed.
In order to eliminate this variant of the cause of the problem, do the following, unless you have some specific driver for a special monitor, but it is indicated that this is a standard (generic) monitor:
I admit that a similar situation may occur not only with TeamViewer, but also with other similar programs, if you use them, I recommend checking it.
Monitor Drivers
I have never encountered such a situation, but it is theoretically possible that you have some kind of special monitor (probably very cool) that needs its own drivers, and not all of its functions work with standard ones.
If what is described is similar to what actually exists, install drivers for your monitor from the official website of its manufacturer or from the disk included in the package.
What to do if the brightness keys on the keyboard do not work
If the brightness adjustment is Windows settings 10 work properly, but the keys on the keyboard designed for this do not, then it is almost always the case that there is no specific software from the laptop (or all-in-one) manufacturer that is necessary for these and other functional keys to work in the system.
You should download such software from the manufacturer’s official website specifically for your device model (if not for Windows 10, use software options for previous versions of the OS).
These utilities can be called differently, and sometimes you need more than one utility, but several, here are some examples:
- HP - HP Software Framework, HP UEFI Support Tools, HP Power Manager (or better yet, install everything from the “Software – Solutions” and “Utility – Tools” sections for your laptop model (for older models you should select Windows 8 or 7 to V the necessary sections downloads appeared). You can also download a separate HP Hotkey Support package for installation (found on the hp website).
- Lenovo - AIO Hotkey Utility Driver (for all-in-one PCs), Hotkey Features Integration for Windows 10 (for laptops).
- ASUS - ATK Hotkey Utility (and preferably ATKACPI).
- Sony Vaio - Sony Notebook Utilities, sometimes requires Sony Firmware Extension.
- Dell - QuickSet utility.
On at the moment time, this is all I can offer regarding troubleshooting problems with changing screen brightness in Windows 10. If you still have questions, ask in the comments, I will try to answer.
