What driver is needed to adjust the screen brightness. Why can't I adjust the brightness on my laptop? How to adjust screen brightness? Using the graphics card driver

After installation Windows updates 8.1 on mine Samsung laptop 470R, the ability to change the screen brightness was lost. When you press the brightness up button, the slider moves and the screen remains at the same brightness that the computer was turned on at. To put it mildly, it is not very convenient when the screen brightness does not change, and the energy-saving mode, based on reducing the screen brightness, also becomes inoperative.

What I did before upgrading Windows 8 to Windows 8.1 - updated all drivers and did backup copy important files, i.e. followed the standard recommendations from Microsoft and Samsung.

To find a solution to the problem with the inability to change the screen brightness, I first updated everything again possible drivers(Intel HD Graphics 4000 (https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&ProductFamily=Graphics&ProductLine= Laptop+graphics+drivers&ProductProduct=2nd+Generation+Intel%C2%AE+Core%E2%84%A2+ Processors +with+Intel%C2%AE+HD+Graphics+3000%2f2000), AMD Radeon HD 8750M (http://support.amd.com/ru-ru/download/desktop?os=Windows+7+-+64)), but the problem that it is impossible to change the screen brightness remains.

Then he suggested that the problem might be with the new drivers. I encountered a similar problem in the interaction between Samsung and Microsoft after the release of NetFramework 4.5, with which the synchronization program Samsung phone Kies refused to see connected devices (see).

To work with drivers manually (return to the old version in automatic mode not running) I went to Computer Management (Device Manager) and saw 2 video adapters - AMD and Intel. AMD was flagged, indicating that it did not have a driver loaded. But the Intel one worked. Alarmed.

I double-clicked on the AMD Radeon HD 8750M, opened the device properties, saw a driver loading error message, and went to the Driver tab to see which driver was being used. Clicked the Update driver button and selected the Browse my computer for driver software option, then clicked the Let me pick from a list of device drivers on my computer button. computer).

In my case, the AMD Radeon HD8600/8700M driver was used without a date. I decided to try to select the AMD Raden HD 8750M driver Version: 13.152.0.0. And lo and behold! This device began to work. But not the brightness of the screen.

As I wrote above, the Samsung 470R has two devices responsible for graphics output. Therefore, it remained to check what was going on with Intel’s Intel device HD Graphics 4000.

Similar to working with AMD card, I went into the properties of the Intel HD Graphics 4000, double-clicked on the name in the device manager, went to the Driver tab and clicked Update driver, selected Browse my computer for driver software, then clicked the Let me pick from a list of device drivers on my computer button.

The bulk of the power consumption of a laptop PC comes from the screen backlight. Manufacturers specifically set them to low power to increase operating time. battery. For many people, such brightness becomes unacceptable, so it will be useful to know how to make the screen brighter and adjust the image.

How to adjust brightness on a laptop

If you are sure that your monitor is too dim, there are options to increase the screen brightness on your laptop. Each manufacturer left the opportunity for users to adjust contrast levels, color rendering, etc. You can change the power of the screen backlight in the following ways:

through the power menu;
built-in Windows program;
using hot keys;
through additional applications.

Using a keyboard shortcut

The easiest way to increase the brightness of a laptop screen is a combination of buttons. All world manufacturers laptop computers(Asus, Lenovo, Samsung, HP, Acer) have hotkey combinations via the Fn function button by default. It is located on the very bottom line of the keyboard, usually between Ctrl and Win. Instructions on how to change the screen brightness on a laptop via function keys:

Find a key on your keyboard that has a sun or light bulb on it. On different models these can be either arrows or one of the buttons F1, F2, F8.
Hold down Fn, then you need to press the key with the image of the sun several times. The backlight should change gradually, set the required level.
You can do the reverse procedure in exactly the same way. Nearby there should be a button with the sun, but not painted over inside, which means you can reduce the intensity of the backlight.

Via power settings

The computer options are programmed to make the screen dark to save battery when the PC is disconnected from the network. If desired, you can configure different modes work so that the monitor does not become dim even when disconnected from the network. To do this you need:

Go to the Start menu.
Go to the "Control Panel" section.
Find the item “Power Options”, click on it.
Use the "Setting the display to turn off" section.

This menu has two settings options: from battery and from mains. You can set specific metrics for these two states. You will be asked to set values for the time after which the monitor will turn off, go into sleep mode, and the screen brightness level. Some laptop PC models may have several operating modes, for example, Asus suggests using Performance, Quite Office, Movie, and you can make changes to each of them.

How to increase brightness on a laptop using a special program

Another option for increasing screen brightness on a laptop is to use additional programs and system functions. Manufacturers offer to install along with drivers software for their products. For example, Intel suggests using special utility Intel HD Graphics, you can usually find it on the taskbar next to the clock. For AMD, these functions are performed by the Catalyst Center, which gives wide range options for making changes in display settings.

If you want to easily and quickly increase the backlight power on your monitor, you can use the built-in menu from Windows. To do this:

Right-click on the battery image.
Select Windows Mobility Center.
In the window that opens, use the slider to increase the required indicator.

What to do if the brightness on the laptop does not change

Sometimes adjusting the laptop screen brightness does not have the desired effect. This is not a reason to immediately go to service center, sometimes the problem lies elsewhere. First, you should check the availability of drivers for the video card and their relevance. It is likely that the graphics driver simply does not know how to react to your actions. You should also check the availability of keyboard drivers and the functionality of the Fn key. Try using it to increase or decrease the volume of the speakers.

Hello.

A fairly common problem on laptops is the problem of screen brightness: it either does not adjust, then changes on its own, then everything is too bright, or the colors are too weak. In general, it’s just a “sore topic.”

In this article I will focus on one problem: the inability to adjust brightness. Yes, this happens, I myself periodically encounter similar questions in my work. By the way, some people neglect to adjust the monitor settings, but in vain: if the brightness is too low (or too high), the eyes begin to strain and get tired quickly.

So where to start solving the problem?

1. Brightness adjustment: several ways.

Many users, having tried one method of adjusting the brightness, come to an unambiguous conclusion - it cannot be adjusted, something has gone wrong and needs to be repaired. Meanwhile, there are several ways to do this, besides, once you set up the monitor, you can not touch it for quite a long time, and you won’t even remember that one of the methods is not working for you...

I suggest trying several options; I’ll discuss them below.

1) Function keys

The keyboard of almost every modern laptop has functional buttons. They are usually located on the F1, F2, etc. keys. To use them, just click the button FN+F3 For example (depending on which button you have the brightness icon on. On DELL laptops- these are usually the F11, F12 buttons).

Function buttons: brightness adjustment.

If the screen brightness has not changed and nothing appears on the screen (no control) - move on...

2) Taskbar (for Windows 8, 10)

In Windows 10, you can very quickly adjust the brightness by clicking on the power icon in the taskbar, and then left-clicking on the rectangle with brightness: adjust its optimal value (see screenshot below).

3) Via control panel

First you need to open the Control Panel at: Control Panel\All Control Panel Items\Power Options

4) Via video card driver

The easiest way to open the video card driver settings is to right-click on the desktop and select graphics characteristics from the context menu (in general, it all depends on the specific driver; sometimes you can go to its settings only through the Windows control panel).

In the color settings, there are usually parameters for setting: saturation, contrast, gamma, brightness, etc. Actually, we find the desired parameter and change it to suit our requirements.

2. Are the function buttons enabled?

Very common cause, due to which the functional buttons on the laptop do not work (Fn+F3, Fn+F11, etc.) - are BIOS settings. It is possible that they are simply disabled in the BIOS.

The choice of section where to enter the BIOS depends on your manufacturer. Here (within the framework of this article) it is unrealistic to give a universal recipe. For example, in HP laptops - check the System Configuration section: see if the Action Keys Mode item is enabled there (if not, switch it to Enabled mode).

Action keys mode. Laptop BIOS HP.

On DELL laptops, function buttons are configured in the Advanced section: the item is called Function Key Behavior (you can set two operating modes: Function Key and Multimedia Key).

3. Lack of key drivers

It is possible that the functional buttons (including those responsible for screen brightness) do not work due to a lack of drivers.

Give a universal name for the driver in this question (which you can download and everything will work)- it is forbidden (by the way, there are some of these on the Internet, I highly recommend not using them)! Depending on the brand (manufacturer) of your laptop, the driver will be called differently, for example: in Samsung it is “ Control Center", in HP - "HP Quick Launch Buttons", in Toshiba - Hotkey utility, in ASUS - "ATK Hotkey".

4. Incorrect drivers for the video card. Installing "old" working drivers

If everything worked as it should for you before, and after updating Windows (by the way, when updating, you usually always install a different video driver)- everything started to work wrong (for example, the brightness slider moves across the screen, but the brightness does not change)- it makes sense to try to roll back the driver.

By the way, important point: You must have old drivers with which everything worked well for you.

How to do this?

1) Go to the panel Windows management and find the device manager there. You open it.

Updating the driver in Device Manager

Then select "Browse this computer for driver software."

By the way, it's possible that old driver (especially if you just updated the old one Windows version rather than reinstalling it again) already on your PC. To find out, click the button at the bottom of the page: "Select a driver from the list already installed drivers" (see screenshot below).

Where to look for drivers. Directory selection

Then just point to the old (different) driver and try using it. Very often this solution helped me, because old drivers sometimes turn out to be better than new ones!

List of drivers

5. Windows OS update: 7 --->10.

By installing, say, Windwows 10 instead of Windows 7, you can get rid of problems with drivers for function buttons (especially if you can't find them). The fact is that the new Windows OS has built-in standard drivers for function keys.

For example, the screenshot below shows how you can adjust the brightness.

I should note, however, that these "built-in" drivers may be less functional than your "native" ones ( for example, some may not be available unique features, for example, auto-adjustment of contrast depending on external lighting).

If you have anything to add on the topic of the article, thank you in advance for your comment on the article. Good luck!

Good afternoon

The problem with adjusting brightness on laptops is quite common. And you shouldn’t turn a blind eye to it at all, because... Our vision directly depends on this (if the screen is, for example, too bright -).

In this context, we most often encounter two problems:

brightness is adjusted automatically and spontaneously- sometimes darker, sometimes lighter, depending on the lighting in the place where the laptop is located (or on the contrast of the picture on the screen). How to solve this problem was described in this article:
Brightness is not adjustable at all, it is always constant (even if you press special function keys).

In this article I want to focus on the second development of events, and show what can be done. So...

Ways to adjust brightness

For starters, in my opinion, it's worth a try different ways brightness settings. Even if suddenly one of them does not work, this is not a reason not to try the other. In the end, brightness adjustment- this is a one-time procedure that does not need to be done very often, and if any of the options works, the problem can be considered solved...

Option #1

The easiest and fastest way to see what's going on with the battery and brightness is to click on the "battery" icon in the tray. Next, you will appear in a menu where you can add/subtract current values (see screenshot below).

Option No. 2

Most laptops have special function keys (they should have a characteristic icon - ) - if you press them (for example, Fn+F5 as in the example below) - then the brightness should change, and a slider should appear on the screen (which can be further adjusted with the mouse...).

Important!

If nothing happens when you press the function keys, I recommend using the recommendations from this article:

Option #3

You can change the brightness, saturation, shades, colors, etc. picture parameters in the driver settings for the video card. To enter them, in most cases, just right-click on free space desktop, and select AMD (or IntelHD|nVidia) settings in the menu that appears.

For example, if you have an IntelHD video card (like me), then simply in the appeared context menu select .

Then you need to open the section "Display/Color Settings" . After which you can adjust the image quality on the screen in detail (see screenshot below).

Option No. 4

Windows also has power settings that let you set the brightness and run time of your device depending on whether it's plugged in or plugged into a battery.

To open these settings, you must:

Press the key combination: Win+R
enter the command: powercfg.cpl
press Enter

Option #5

In Windows 10, you can customize your display through the Control Panel. To do this, open the menu: START/Settings/System/Display.

Display (START - Settings - System - Display) // Windows 10

What to do if the brightness cannot be adjusted

1) Update the drivers for the video adapter // roll back the old ones

In most cases, it is not possible to change the brightness due to the fact that the system does not have relevant drivers for the video card. This may happen if, for example, after installing or updating the system, you did not download them from the official website (as a result, you are left with the driver that Windows itself installed - it, of course, works, but some options are not available!) .

Here you can do the following:

go to the official website of your device, download the driver for the video adapter, and update it. For information on how to do this entire procedure, see this article:
try to roll back the driver to the old one (which could remain in the system, for example, after updating it). I recommend trying this option first, and if there are no other versions in the system, then try the first one, see the link just above.

How to try to roll back the system to the “old” working driver:

In the vast majority of cases, after updating the driver for the video adapter, you can easily change the brightness using the Windows control panel (for example, through the power settings), or through the control center of the driver itself, even in cases where other methods do not work!

2) Check if the function keys work

You can learn how to configure and enable them from another article of mine on the blog (link to it below).

What to do if the function keys (F1-F12, as well as Fn) do not work, you cannot change the brightness, volume, turn on/off the touchpad or Wi-Fi adapter:

3) Disable adaptive brightness control

Some laptops have special light sensors and by default they adjust the screen brightness depending on the lighting level in the room (called: adaptive brightness control). In most cases, this option does not provide the optimal level of picture quality on the screen and it is recommended to turn it off.

To do this, open the Windows Control Panel at the following address: Control Panel\Hardware and Sound\Power Options\Change circuit settings

Need to open additional settings your power supply circuit.

In the tab "Display/Enable Adaptive Brightness" - there will be a treasured setting. Just switch the modes to "Off." In some cases, you will need to restart the laptop.

By the way, let me draw your attention to the fact that some laptop models are equipped with additional settings centers (for example, Sony VAIO, Lenovo, etc.). They may have some options that affect the quality of the picture on the screen (example below). Just go to the similar settings center and disable all options that are related to brightness and adaptability sensors...

4) Try changing the OS (or install a second one for testing)

I would like to note right away that it is highly advisable to first go to the official website of your laptop manufacturer and see for which OS there are drivers.

As a help!

We check on the official website of the laptop manufacturer for which Windows operating systems there are drivers

Additions are welcome...

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?

Right-click on an empty space on the Desktop and select “Screen Resolution” from the menu that opens.
In the screen resolution settings we find the link “ Additional options- she is 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 mode 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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