Spontaneous change in monitor brightness - the laptop changes the brightness itself! Why? Reducing monitor brightness on laptops and computers Outdoor high brightness display totem

Many users, either due to duty or for personal reasons, have to spend quite a lot of time at the computer. And not the least role in the comfort of work is played by the brightness and contrast of the image on the monitor or laptop screen. Oversaturation or poor lighting can cause your eyes to become tired. Let's see how to make the necessary settings using a few simple tools.

How to change brightness on Windows 7 (or any other system) on a desktop computer

First, let's look at the moment the system starts. The user usually associates the normal mode of image perception with when the welcome screen appears on the monitor. Just by its appearance you can judge how comfortable it is perceived by the eyes. Both brightness and contrast immediately attract attention. Changing one of the parameters on desktop computers can be done quite simply.

It's no secret that exactly in desktop PCs or workstations system unit and the monitor (or several) are used separately. Their design is such that there are one or two buttons directly on the front panel: increasing or decreasing brightness.

In addition, if, so to speak, in a question related to how to change the brightness of the screen or the contrast of what is displayed on the monitor, we dig a little deeper, it is worth noting that any monitor has its own menu, called up by a special button, in which there are advanced settings, including the mode of shifting the image, stretching or narrowing it, etc. As you can see, personalization is quite simple.

How to adjust screen brightness on a laptop

With laptops the situation is even simpler. Since the screen is an integral part of the entire design, there are no special buttons on it, as is provided for free-standing monitors. Nevertheless, the question of how to change brightness on Windows 7 or any other system (there is no fundamental difference) is solved using special keyboard shortcuts.

As a rule, changing the brightness parameter is done using the Fn button in combination with either function keys, which have up and down arrows and an image in the form of a sun. For example, on Fujitsu laptops these are the F7 (increase brightness) and F6 (decrease) keys, on others - F2 and F1, etc.

In some models, such settings can be made using the same pressed buttons using additionally standard right/left arrow buttons (sometimes up/down).

on any Windows system

Another simple method to solve the issue of how to change the brightness on Windows 7 is to right-click on an empty area of ​​the Desktop and from context menu select screen settings (personalization).

After entering the section, all available parameters will be displayed, which can be easily changed at your discretion.

Setting parameters in the power plan

These were, so to speak, the simplest methods. Now let's see how to adjust the screen brightness on Windows 7 using the system's own tools. To do this, you need to use the power section, which is accessed from the standard one. Here you need to select the option to change settings, after which two main plans will be shown (balanced and economy mode).

If for some reason the user is not satisfied with them, they can simply be changed. To do this, use the change point additional settings, where the adaptive mode is turned on. You can also change the brightness in the “Screen” section, where the settings are presented in the category of parameters for turning off the display.

Using a video card management program

How to change brightness on Windows 7 in another way? You can use special utilities management of NVIDIA and AMD graphics adapters that are initially installed in the system.

After the call control program either from the system tray, if it is in the active state, or from the same Control Panel, in it you need to find the display settings section, and then go to the Desktop color adjustment item (for NVIDIA, for example). It is here that you can change the brightness, contrast, gamma, image saturation, and much more.

The simplest comfort test

So, the screen parameters are set. Now you need to check how comfortable the perception will be. To do this, open an empty Word document. If you feel uncomfortable when looking at it, the screen settings should be changed. You can simply take a blank sheet of A4 paper and compare it with the white field of the document. If there is no difference when looking at both the sheet and the screen, then everything is in order. Finally, do not forget that when working at a computer or laptop for a long time, no matter how optimal the settings are, it is recommended to take a break of about a quarter of an hour every 45 minutes to relieve fatigue, including from the eyes.

As for the settings, the methods are quite varied, and which one to use is up to you. However, if we're talking about only about brightness, the best option buttons will become and But if you need to produce fine tuning, it is better to apply software both the operating system itself and the programs included in the control software graphic cards, especially since this is exactly what they are designed for.

Oddly enough, quite a lot of people suffer discomfort because they do not know how to reduce the brightness of the screen on their computer. For many users who work at a computer for a long time, the normal brightness of the monitor can cause fatigue and even burning in the eyes. In this article, using an example, we will look at how you can reduce or increase the brightness of a computer screen.

How to adjust brightness on a laptop?

On almost any laptop adjusting screen brightness is quite simple. There are special keyboard shortcuts for this.

Press the "Fn" and "Left Arrow" or "Fn" and "Right Arrow" keys (you may have other brightness keys. Look for the "sun" icon on the keys) to adjust the desired monitor brightness level.

Fn key in combination with the top row or arrow keys can perform a specific action that is often written on the keys themselves. If these combinations do not work on your laptop, this most likely means that the laptop does not have drivers (software) that allow you to use hot keys. If there is such a problem, look at the very bottom “Method 2”.

How to adjust brightness on a desktop computer?

The easiest way is to use the buttons on the monitor itself to go to the menu and adjust the brightness there. If for some reason you cannot adjust the brightness using hardware, there are two more ways.

Method 1. Go to your computer's video driver settings. You can almost always find it near the clock in the “Hidden Icons” tab. Next, in the driver itself you need to find “Adjust color parameters” (yours may be slightly different) and then move the sliders there to achieve the desired brightness level.

Method 2. If you are unable to make friends with your computer's video driver, you can download a small program that will do everything for you. For example, the Monitor Bright program allows you to change the brightness of any monitor. Download and run the program. The program is very easy to use.

You only need to enter a percentage value from 0 to 100 in a special window.

If you enter "0" the brightness will become maximum. If you enter a value of 20, the brightness will decrease by 20%, etc. This way you can adjust the desired screen brightness on any computer in just two clicks. We hope the information in this article was useful to you! Good luck.

I’m answering the following question: my nephew did some work, the brightness of the laptop screen has changed, how can I restore it?

Let's consider three options for changing the screen brightness:

• using Power Supply (the most efficient option),
• pressing the function keys of the laptop,
• using special program, built into the laptop.

Let's look at the Power Options settings

For operating room Windows systems 7 Click Start, then Control Panel, at the end of the list that appears, click on the Power Options link.

Or click on the Start button and enter Power Options in the bottom Search bar. Click on Power Options that appears as a result of the search.

At the very bottom of the “Select power plan” window, move the “Screen brightness” slider to adjust the brightness (number 1 in Fig. 1, pictures are clickable):

Rice. 1. Change laptop screen brightness

If the “Screen Brightness” slider is not active, that is, does not respond to attempts to move it, then this may mean that the laptop is not designed to adjust the screen brightness (laptop manufacturers saved on this), or it is worth upgrading the monitor.

Additional options for adjusting brightness

How else can you adjust the brightness of a laptop? After you select one of the power plans:

1. balanced or
2. high performance

Rice. 2 (click on the picture to enlarge). Extra options to change the brightness of the laptop

2 in Fig. 2 – click on the plus sign opposite “Screen”,

3 in Fig. 2 – open “Screen brightness” by clicking on the plus sign. If you click on one of the numbers 58% (and you, of course, may have other numbers), then you can edit them and set others that are more convenient and suitable for you.

How to set the time after which the laptop screen goes dark?

Go to Start – Control Panel – Power Options (Fig. 1). Click on the “Set up power plan” button (number 2 in Fig. 1). The “Configure power plan” window will open:

Rice. 3. Setting up a laptop power plan

Here you can select the time for the Dim Display and Turn Off Display options when running on battery or plugged in. Don't forget to click the "Save Changes" button if you made any changes.

Pros and cons of function keys when adjusting laptop screen brightness

On the laptop there is a way to change the brightness of the screen among F1-F12 with an image of the sun and next to “+” to increase the brightness, or “-” to decrease it. You need to hold Fn and the corresponding one from F1-F12.

The method is bad because Windows later can easily return everything back. Therefore, it is better to make settings using proprietary Windows tools 7, that is, through the Power Supply described at the beginning of the article.

By the way, if you reinstall the laptop operating system from a non-native distribution, then many of the functions of the laptop’s function keys will NOT work, unfortunately.

Changing the brightness of a laptop screen using a special program

Advanced laptops may have their own advanced options for adjusting screen brightness. For example, AUTOMATIC screen brightness adjustment. If you set this option, the screen brightness will automatically increase in bright light and vice versa.

For example, at Sony Vaio Such settings are available in the Vaio Control Center program.

Rice. 4. Automatically adjust the brightness of the Vaio laptop screen

Select the “Display” option, and in it – “ Automatic settings brightness” (number 1 in Fig. 4). Here you can uncheck the box next to the “Automatic brightness adjustment” option (number 2 in Fig. 4). Don’t forget to click “OK” (number 3 in Fig. 4) to save the changes if they have been made.

For other laptop models, such settings (or lack thereof) can be found in the instructions for this laptop, which can be in paper or electronic form.

The effect of bright computer screens on the brain is underestimated by many. Sitting at a computer in the dark suppresses the production of melatonin, which gives the body a kind of signal to sleep. This subsequently leads to sleep disturbance and daytime fatigue. This happens due to the excessive amount of light that comes from computer monitors, laptops or phone and tablet displays. That is why it is advisable to reduce the brightness of the displays by at least half in the evening and at night. If you use a laptop or phone, this step will also help save battery power. In this article we will tell you how to reduce the brightness of your computer monitor and laptop.

How to change laptop display brightness?

Every laptop is different, so adjusting screen brightness and contrast may differ from the steps in this article. Please note that the brightness level may be limited by your power settings.

Method 1 - Adjusting Brightness Using Keys

Most laptops support changing the brightness level using a function key in combination with another key. For example, by pressing and holding the function key (abbreviated "Fn") and the up arrow or down arrow key, you can increase or decrease the brightness of the screen. The key used to adjust brightness along with "Fn" may differ depending on specific model laptop, but the symbol remains the same everywhere - the sun icon.

Method 2 – adjusting brightness through the control panel

You can also adjust the brightness through the control panel, in the display settings. To do this, do the following:

Method 3 – Changing brightness through your video card driver software

If you have one of the popular video adapters installed (Nvidia, AMD or Intel), you can change the brightness, contrast, and gamma settings in the driver's own configuration window.

For NVIDIA graphics adapters

For AMD graphics adapters

AMD/ ATI drivers Videos also have the ability to change the display's brightness, contrast, and gamma, although access to the settings panel for these values ​​may differ between driver versions. For example, in version “Catalyst 10.2”, to enable brightness adjustment, you need to go to the “Color” menu. You can open the program by right-clicking on the desktop and selecting “Catalyst Control Center” from the context menu.

For Intel Graphics

Method 4 – If the above methods do not work

If the keyboard shortcut with the function key does not work, and you have made the appropriate adjustments in Power Options, then most likely your computer has problems with the video card drivers. This usually happens after updating the driver. In this case, we recommend either rolling back to previous version driver, or perform a clean installation. Clean installation implies complete removal the current driver with the OS (including additional software) and installing a new driver.

If none of the options helped, then most likely the problem is either in the operating system itself or in the hardware.

How to change the brightness of a desktop PC monitor?

If you have desktop computer, then the above methods also apply to it, but it is much more convenient to use the functionality of the monitor itself to calibrate the brightness parameters. Almost all monitors have physical or touch control buttons. Usually there are 4-5 of them: power button, menu, auto-tuning, left and right arrows.

Of course, depending on the model, their number may differ. For example, new Samsung monitors use a 5-way joystick.

To adjust brightness, press the Menu button and go to Brightness and Contrast settings. To set the desired value, use the left or right arrow keys.

If you have a different control scheme, please refer to your monitor's instructions that came with it.

1. In a room where the sun shines, it is better to close the curtains a little and set the brightness to 15-30%. Here, of course, everything is individual, but you should not set more than a third of the maximum brightness level. If, however, the sun shines directly on the display, then set the maximum level.
2. If your work is related to design or photography, then you should remember that when you reduce the brightness, colors may be distorted.
3. Try to install the lighting so that its light does not fall directly on the monitor. This can cause glare and discomfort when working.

The brightness of a laptop screen is one of the most important parameters. Setting the brightness correctly not only helps you see the laptop image clearly and correctly identify colors, but also protects your eyesight, since too high a value “burns out” your eyes, and too low makes them strain more. Also, reducing the brightness will save battery battery. But most users do not immediately find the right button. In this article I will show you how to change the brightness on a laptop. These methods are suitable for most models, be it Lenovo, Samsung, Acer or Asus.

There are a large number of ways to reduce or increase screen brightness. Here are the most popular ways to change the display brightness on a laptop:

Method 1: Keyboard shortcut

Most laptop models have a special button - « Fn", function key . It allows you to control many important computer parameters using special combinations. To lower or raise the screen brightness using your keyboard, you will need:

1. You need to find it at the top of the keyboard, in the system keys area « F1-F12" buttons on which the corresponding icons for adding or decreasing brightness will be drawn.
2. Press the key combination “Fn” and the key you need. In this case, it is better to first press the function key, and only then one of the keys « F1-F12".

This method is the most effective and works on almost all laptop models and allows you to increase or decrease the saturation of the monitor in a few seconds.

Method 2: tray icon

In the tray (bottom right edge of the screen), among other icons such as the clock, Internet status, language, there is a power icon. Using it you can open a very convenient menu in which you can change the brightness of the screen. Need to:

1. Click on the battery icon in the tray using the right mouse button.
2. In the drop-down menu, click on the lowest item "Mobility Center"Windows".
3. A very convenient window will open in front of you. Using the slider, you can increase or decrease the brightness on your laptop.

Method 3: For Windows 10

In this operating system, you can remove or increase the brightness on your laptop even more in a simple way than the previous one.

1. Click on the power icon (battery in the lower right part of the screen) with the left mouse button.
2. There is a brightness option in the drop-down menu. By clicking on the icon, you can set it to 0, 25, 50, 75, 100%.

This method is very convenient, as it allows you to very quickly reduce or increase the color saturation on the screen in just a couple of clicks.

Method 4: From the Desktop

You can change the brightness directly from your desktop. To do this you need:

1. Right-click on the space unoccupied by shortcuts on the desktop.
2. In the drop-down menu, click on “Display Options” in Windows 10 or “Screen Resolution” for Windows 7, based on the version Operating System installed on your computer.
3. In the window that opens, you need to find the slider responsible for the brightness of the screen. By moving it left and right, you can turn down or turn up the brightness on your laptop.

Method 5: Control Panel

You can more precisely adjust the screen brightness control using the “Control Panel”. For this:

1. Launch Control Panel. To do this, type the appropriate phrase in the search bar. Or, if you have Windows 7, the launch panel button is located in the Start menu.
2. Go to the "System" or "System and Security" tab.
3. Then click on the “Power Options” line.
4. There you need to select the installed power plan and click on settings. In the menu that opens, you can not only change the brightness, but also configure the display to turn off and put the computer into sleep mode.

What to do if the brightness does not decrease or increase

There are several reasons why this problem may occur. The most common of them:

Reason 1: Light sensor

Some expensive laptop models have a light sensor that changes brightness depending on the light level. Often this sensor interferes with setting the screen brightness to a comfortable level for the user. And sometimes this sensor fails.

To solve this problem, you need to disable the sensor in your laptop's settings and use one of the methods described above to set the optimal monitor brightness level.

Reason 2: Backlight system malfunction

This is true for older laptop models, where glass tubes are used as backlighting rather than LEDs. The fact is that the resource of these elements is limited and if they fail, the backlight turns off completely, but the user can see the image on the screen and think that the brightness level is set to the minimum value.

It is necessary to contact a specialized service, where professionals will replace the damaged parts, however this procedure not cheap, due to the difficult availability of spare parts.

Reason 3: viruses

It is extremely rare, but worth mentioning. Some viruses are able to control the brightness of the screen, which interferes with normal operation.

You need to scan your computer with an antivirus, or preferably several. To prevent re-infection, it is best to have an antivirus with real-time protection.

It is worth recalling that some of the described methods may differ or may not work at all on your computer due to different versions of the installed Operating System and the individual characteristics of the laptop. So if one method doesn't work on your computer, don't despair, try another. I hope you liked the article.