Laptops are devices with which various kinds of problems often occur. Most models lose their battery over time, which is why the device stops working autonomously. Sometimes the user does not understand why the brightness on the laptop is not adjusted. Also, problems can affect the system and hardware failures.
Brightness control is an option on any monitor or screen. In a computer, changing this parameter is easier, since all monitors have special buttons. In a laptop, you must use keyboard shortcuts or system settings. But it happens that the laptop does not adjust the brightness. Why and what to do about it?
Problem
If the brightness on the laptop is not regulated, this may be due to problems with the drivers of several devices at once, key problems and system crashes.
As practice shows, a common cause is incorrect operation of monitor drivers, graphics adapters or chipsets. Brightness adjustment may not be used as often, but in some cases it can be extremely useful. Especially if the device is often used in different places: on the street, in a cafe or at home. Due to different lighting, the image on the screen may be distorted.
Causes
As mentioned earlier, if the brightness on the laptop is not regulated, it means that there were problems with a certain part of the system. The most common options include:
- monitor off;
- graphics card drivers;
- chipset drivers;
- lack of auto updates;
- monitor drivers;
- crashes at the program level.
Most of these problems occur on any operating system, so solving them will suit every user.
Monitor off
Most often, the monitor is turned off due to a failure in the system. Therefore, the solution to this problem lies in the correct configuration. How to understand what monitor is turned off?
Opening the control panel, the user does not find an icon to adjust the brightness. Naturally, you immediately need to open the monitor settings menu.
In the screen settings you can find the slider for changing the brightness, but nothing can be done with it. This again leads to the idea that the monitor is turned off or the system does not find it. How then can the user see everything that is happening on the screen?
Here the bottom line is that physically the display is functioning, but at the level the driver displays the system as inactive. Therefore, all adjustment parameters are temporarily disabled. This problem does not often occur, but it is easiest to deal with.
Monitor off solution
If the brightness is not adjusted on a Windows laptop, you need to go to the “Device Manager”. You can either enter the name of this menu in the search, or go to "My Computer", use RMB and the "Properties" menu. On the left we find the necessary section.
A new dialog box will list all components connected to the motherboard. Among them we find “Monitors” and “Universal PnP Monitor”. If the display is really turned off, an arrow will be displayed next to the icon. It indicates that the monitor is disabled at the software level. It will be enough to click on it with RMB and select the “Enable” command.
After that, it will be enough to reboot the system. It is immediately worth noting that a similar problem most often occurs on a laptop with Windows 10 and Lenovo and Pavilion models.
Monitor drivers
Without departing far from the topic, it is worth mentioning problems with monitor drivers. This question is most often encountered by those who use specialized equipment that needs drivers.
If a professional or semi-professional screen is used, it will not be able to work in tandem with the standard software that is in the Windows distribution. In this case, you will have to find suitable "firewood" that would fix the problem. They can be found on the disk that came with the monitor, or on the device manufacturer’s website.
Graphics card drivers
If the brightness does not change on a Windows 10 laptop, you need to look at the performance of the graphics driver. This is a common problem, besides the video card is really prone to problems with software and update errors.
This problem may be caused by:
- drivers were removed by the system;
- they were not installed at all;
- the adapter was disabled in the "Device Manager";
- Incorrect update occurred.
Solving problems with video drivers
So, if the "firewood" was deleted or not installed at all in the system, then it is enough to download them on a Windows 10 laptop yourself. Often the system can install the software on its own from unverified sources, load them with special software or from the driver pack. In this case, you need to go to the official website of the video card manufacturer and find the necessary files there.
It is very important to download the software from the official website so that no more such problems happen. You can also use special programs to update.
For example, if the video card is from Nvidia, it will be enough to download Nvidia Experience from the official resource. This is an official utility that offers to optimize the graphical component of the system, as well as install updates for the card.
If the video card is disabled, you need to activate it in the same way as previously done with the monitor. Go to the "Device Manager" and find the line "Video Adapters", select the desired model and "Enable" it.
Chipset drivers
There is a similar story to the problem with the video card. If, for some reason, drivers were downloaded from a third-party source or through automatic installation of system software, not all options may work. Some of them may not be displayed at all, because of which it will not even be possible to find where the brightness is on the laptop.
In this case, it is enough to establish the necessary "firewood" from verified sources or the official website.
Automatic update
Often, this particular system option can play a trick. And if in Windows 7 this function was disabled without problems, then with the "Ten" things are more complicated. Often, without the knowledge of the user, the system begins to install updates that can only harm it. Some may cause features or tools to disappear.
To disable it, you will need to go to the "System" menu. This can be done using the Win + X buttons or through the context menu. Next we find the item “Change settings”. We find the “Equipment” menu and select “Device Installation Parameters”.
In the new window, you need to refuse automatic loading of programs: select "No" and click on "Save".
Combination Issues
The brightness button on the laptop is the easiest way to adjust this parameter. It is on every keyboard and initially functions properly. Sometimes it’s enough to click on it to change the brightness, and sometimes you need to use a combination of keys, among which there is a button “Fn”.
If for some reason these combinations do not work, the problem may be with drivers or incorrect use of buttons.
Included with any laptop is always a disk that contains all the necessary drivers for the correct operation of the device. Usually, after installing Windows, just put this disk and start downloading all the programs.
If for some reason you do not have the opportunity to do this, then you need to go for the software to the official website of the laptop manufacturer. If you have a laptop from Hewlett Packard, then you need to download the HP Software Framework. Asus has a suite of programs called ATK Hotkey.
It may be necessary to configure the buttons in the BIOS. Combination options may be disabled in this menu. It is necessary to go into it and find the appropriate section. Depending on the model, it can be designated as System Configuration, Action Keys Mode, Function Key Behavior, etc.
Brightness adjustment
How to add brightness to a laptop monitor? To do this, you need to look at the laptop keyboard. In the upper row are combination buttons, on which, in addition to the designations F1-F12, there are also icons. If you do not know what they mean, read the instructions.
The button for increasing the brightness is indicated by the image of a large sun, but to reduce the brightness, you must click on the button with a smaller sun. By the way, the same logic for the two keys to adjust the volume.
But it will not be enough just to find these keys. They always work with a function button, which can be designated as “Fn” or “Fx”. It is located in the bottom row. Using a combination of two buttons, you can enable or disable this or that function.
On a laptop, you can adjust the brightness or volume, enable or disable the wireless network, touchpad, monitor and sound. You can send a laptop to sleep.
In addition to the buttons, you can also use the software brightness setting. For example, in the tray, you can sometimes find the corresponding icon. You can also go to the “Control Panel”, select the “Power Options” setting, and in one of the power plans you can find a slider with adjustment.
The brightness is adjusted in the Intel Graphic utility, which is almost always installed by default. Opening it, you can go to monitor settings, where it is easy to change contrast, gamma, brightness and other parameters.