Brightness is automatically adjusted. f.lux program for automatically adjusting monitor brightness. Depending on the power connection

It happens that on laptops with Windows 10 the screen brightness changes spontaneously. It may be useful for someone, but it irritates me terribly. Moreover, the logic of this action is very strange: if white color predominates, the brightness increases, and if there is a lot of black, it decreases, some kind of nonsense.

Turn off adaptive brightness in Windows 10

You need to open the power settings, to do this, right-click on the “Start” menu and select “Power Options”

Next to the current scheme, click “Configure power supply scheme”

Also, the brightness itself can change when connected to the network or when powered by a battery and the charge decreases to the designated level. The screenshot shows that the value is set in reduced brightness mode - 50%. We put 100% everywhere.

Problem with Intel video cards

If your laptop has a built-in Intel 4000/530 or other video adapter, and the first method did not help, then do the following. Right-click on the desktop and select “Graphics characteristics”

The Intel HD Graphics Driver Control Panel will open. If this is not the case, then write “intel” in the search bar of the Start menu and select “Intel(R) Graphics and Media” from the results.

In the driver panel, select “Power Options”:

The second option is to disable “Extended battery life for gaming applications”. Surprisingly, this can affect the floating brightness on the desktop.

If all else fails

If you don’t play 3D games, then you can take an extreme measure - change the video card driver to the built-in one in Windows. The method is NOT only suitable for Intel.

Device Manager (right-click on the Start menu), select “Video adapters”. Here you will have Intel, AMD or whatever. Right-click on the adapter and “Update drivers...”

In the window that appears, click “Search for drivers on this computer”, then “Select a driver from the list of already installed drivers”

In the list you need to select “Basic video adapter (Microsoft)”

While changing the driver, the screen may blink. The laptop will not reboot automatically, but it is better to do it manually. In this simple way, we disabled all the “tricks” from the manufacturer, but also lost technological advantages. In fact, now the video card can only draw the desktop and video.

To return everything back, you need to do the same thing, but select the old driver in the last step. Or to the system restore point.

Automatic brightness adjustment can be useful, but in some cases it makes sense to turn it off.

Users of Windows 8 and Windows 8.1 have often noticed that the screen of their laptop or tablet seems a little dark.

Most often, the reason for this is unsuccessful automatic brightness adjustment settings.

The presence of a light sensor in portable devices also does not guarantee correct display brightness. Therefore, in such cases, it is better to turn off the automation and adjust the brightness manually.

Of course, it’s not very convenient to open the settings and make adjustments again every time you change the lighting level or power mode; on the other hand, you shouldn’t even consider it as work - vision and comfort during work are much more expensive. So how is it done? And this is done in an elementary way. Open and go to the "Power Options" section. By default, the balanced diet is used.

We will need to create a new one or switch to the “Energy Saving” mode. Let's choose the second option. Click the link “Setting the power supply scheme” and in the window that opens, move the sliders to adjust the screen brightness level. After you select the desired brightness level, you will need to disable adaptive adjustment. To do this, click the “Change advanced power settings” link, in the window that opens, find the “Screen” item and click on the plus sign to expand it.

There will be two more sub-items. Select Enable Adaptive Brightness and set one or both to Off. Save the applied changes and close all windows. The display brightness should now remain at the same level. If you urgently need to change the brightness, Windows has a useful tool for this purpose - Mobility Center.

Question from a user

Hello. The brightness on my laptop began to change spontaneously: when the image is dark, the brightness drops, and when it is light, it is restored to its normal level.

How can I get rid of this problem, otherwise my eyes are starting to get tired because of it? OS: Windows 8, graph. accelerator (video card) Intel HD 4000 (built-in).

Good day!

This problem began to appear more and more often after the release of Windows 8 (this OS introduced the ability to adaptively adjust the brightness, depending on the picture on your screen). Also, some laptops are equipped with special software and sensors that determine the level of light in the room and use it to adjust the brightness of the screen.

There is nothing wrong with this, but in certain cases such a change does not allow it to work normally and interferes with the user. In the article I will tell you in detail how you can disable this spontaneous change in brightness...

Eliminate automatic monitor brightness changes

1) Disable adaptive brightness control

This is the first thing to do. This option is available in Windows 8, 8.1, 10. Those who have Windows 7 can omit this part of the article.

You need to open the power settings section:

1. or via the following address: Control Panel\Hardware and Sound\Power Options
2. or by pressing the Win+R keys and entering the command powercfg.cpl (see screenshot below).

In power settings: follow the link "Setting up the power plan" in the selected mode (in the screenshot below - this is balanced mode. The selected mode is marked in bold black).

Now find the tab among the settings "Screen" and open it. Here in the tab there are 3 key settings:

1. screen brightness from battery and network: set the values ​​that suit you;
2. screen brightness level in dim mode: set exactly the same values ​​that you have specified in the tab "Screen brightness";
3. turn off adaptive brightness control from mains and battery (see screenshot below).

Now save the settings and try to look at light and dark pictures (for example) to evaluate whether the brightness changes. As a rule, such settings completely eliminate this problem...

Update 06/10/2018

If you are using Windows 10, pay attention to its control panel (to go to it, press Win+i). In the section "System/Display" there is a special a setting that allows the laptop to change brightness as the ambient light changes. Turn it off too!

2) Setting up the power supply for the video card

The laptop itself can reduce the brightness under certain operating modes. For example, IntelHD video cards support display energy-saving technology and extended runtime in games when running on battery power. Similar technologies are available in both AMD and nVidia.

First you need to go to the settings of the video card driver (you can do it through - see the screenshot below), or you can do it through the tray icon, next to the clock.

Intel Graphics Settings (Tray)

Important!

If you do not have a tray icon, and there is also no link to graphics settings in the control panel, most likely you do not have the drivers installed (it is likely that you have a “universal” driver that was installed when you installed Windows). In this case, I recommend programs for updating drivers:

They need to set the following:

1. set the energy saving parameter to maximum performance mode;
2. disable extended runtime for games on battery power;
3. disable the display energy saving technology (screen below - see arrows).

Note!

For example, in video cards from AMD, you need to open the “Power” section, then enable maximum performance, and disable Vari-Bright technology (this is AMD technology that allows you to adjust brightness).

Vari-Bright disabled! (AMD Graphics settings) / Clickable

3) Sensor monitoring service

There is one service in Windows that monitors sensors and adjusts the display lighting, depending on the lighting of the room in which your device is operating.

I can say that sometimes the service does not work correctly and can affect the brightness adjustment, even if you do not have any sensors!

How to disable sensor monitoring services

Open a window with services: the easiest way is to press keys Win+R, enter services.msc, press Enter. The method works in all versions of Windows.

Next in the list you need to find the service "Sensor Monitoring Service" , open it. In the column "startup type" set [disabled], and stop the service itself, so that the status appears as "Stopped" (see screenshot below).

Then save the settings and restart the laptop.

4) Laptop Control Center

Certain laptop models include a control center among the software installed with the drivers. For example, in the line of VAIO laptops from SONY there is VAIO control center .

In this control center, for example, you first need to open the tab "Power supply" and set high performance, as well as disable the function that extends battery life (see screenshot below).

High Performance // Power // VAIO Control Center

Picture Quality // VAIO Control Center

Actually, it is hardly possible to give a description for each of these centers. The VAIO Center is shown above as an example of such software.

Lenovo laptops also have something similar: various night modes, dynamic changes in brightness, contrast and other things can significantly change the quality of the picture on the screen. It is recommended to disable them all (at least at the time of setup and adjustment).

5) Problems with hardware

A change in screen brightness may be due not only to software settings, but also to faulty hardware. In what cases can you determine that the laptop hardware is to blame:

• if not only the brightness has changed on the screen, but also stripes, ripples, and dots began to run (as in the example below);
• if when you increase/decrease the brightness on the monitor, absolutely nothing happens;
• if the brightness changes even without changing the picture on the screen and without changing the lighting conditions in the room;
• if the brightness in different parts of the screen is different.

Help!

If you have stripes and ripples displayed on your monitor, I recommend that you read my other article:

Stripes and ripples on the screen / As an example

Good luck!

UPD from comments:

If it doesn't help

After updating to Windows 10, on laptops there may be a problem with automatic brightness changes.
Laptop screen brightness windows 10 changes automatically to low and this may make you irritated.
If you encounter this problem, chances are you've already tried fix energy plan And change the adaptive brightness value. (If so, skip straight to the bottom of the page to # 2 Replace video driver), if not, then start from point # 1 .

1. Disable adaptive control

Click right click on "Start" "Control Panel".

IN "Control Panel" we find "Power supply" or if you have a grouped display

On the screen "Power Supplies" we find "Setting up the power plan", let's go there.

In the power plan parameters, click "Change advanced power settings".

Let's make sure we configure the mode parameters active circuit there will be a signature to the right of the mode name [Active]. Lower the slider and find "Screen".
In the drop-down list we check the parameters we need. Enable Adaptive Brightness [Off]. (Both online and offline)

If after this the brightness continues to change, you need to replace the video card driver.

2. Replace the video driver

Go to "Device Manager". Click right click on "Start"(Windows logo on the right at the bottom of the screen) and select the item from the drop-down menu.

Find it in device manager Video adapter It may be different for you, but most likely Intel(R) HD Graphic Family.

Click on it right click and select the item.


In the dialog box that appears after clicking, select the item Search for drivers on this computer


In the next screen, select the item Select a driver from the list of already installed drivers

To disable annoying brightness changes, select from the list of suggested drivers Microsoft Basic Video Adapter (Microsoft) and press Next to install it. The screen may blink as if the screen resolution is changing.


Once completed, in the Device Manager snap-in, under Video adapter you should have a Basic video adapter, as in the picture.


After which the system should stop changing brightness.

Proper workplace lighting and optimal brightness and contrast settings for your monitor are some of the most essential. Our eyes get very tired when they have to peer closely at a dim monitor in bright sunlight, or, conversely, constantly look at the dazzling spot of the monitor in the dark.

You can, of course, manually adjust the brightness level of the monitor every time the light changes, but doing this is quite cumbersome. Programmers found a way out of this situation and created special computer programs that automatically adjust the monitor luminosity level depending on the time of day. In my opinion, the most successful of this kind of programs is the free utility f.lux.

To create a comfortable environment for the eyes, f.lux in the morning and afternoon, adjusts the monitor settings, using cooler colors, which is subjectively perceived by us as increasing the brightness of the monitor. But in the evening and at night, the image on the monitor seems to “warm”, becoming a little reddish, which creates more favorable conditions for the eyes to work at this time of day.

Here, for example, is what the image looks like on a computer monitor in a dimly lit room with the program on (left) and off (right) f.lux:

The program not only monitors the time of day, but even at the installation stage determines the geographic location of your computer. Knowing the date and time, geographic latitude and longitude allows the program f.lux accurately calculate the moments of sunrise and sunset, changing the color temperature (or color profile) of your monitor as needed.

To download the program f.lux, click on this button:

Any computer user can install this program. By launching the downloaded file flux-setup.exe You will see the following window with the license agreement:

After pressing the button "I agree" The process of copying files begins:

After copying is complete, the button becomes available "Close", by clicking on which you will complete the installation process f.lux. A program icon appears in the system tray (bottom right near the clock), clicking on it with the left mouse button opens the settings window f.lux:

This window schematically shows the position of the sun above the horizon, the current color temperature, the time elapsed since sunrise (or the time after which the sun will set), as well as your geographic latitude and longitude. To make any changes in the program settings, you need to click the button "Change Settings"(or "Settings" in a newer version f.lux):

Of course, you are unlikely to remember your geographic coordinates, so to check whether they are determined correctly, click the button "Change" on the right side of the window (see figure above). A new window appears in which you can start the process of automatically determining your geographic location by pressing a button "Locate...":

In the window that appears, you will see a Google map and the name of your (or nearest) city:

If it suddenly turns out that the program f.lux made a mistake in determining your geographical location, you can enter the name of your city in Latin letters and press the button "Search". When you are sure that your city is found on the Google map, click the button "OK".

You will again return to the window with the main program settings. Now you can decide on the speed of changing day and night color modes:

There are two options: Fast- fast (change occurs within 20 seconds) and Slow - slow (modes change within 1 hour). You can change these modes within two days to decide which one you like best.

And, perhaps, the most important settings in the program f.lux– these are the color temperature settings for day and night modes. These settings are made using the corresponding sliders and then pressing the button "Done":

When you move these sliders left and right, you will notice that they do not reach the edges of the color bars. But this limitation is easily removed by pressing a button "Expand Range":

Immediately after this, a window appears warning you that you need to restart your computer:

If you press "Restart Now", the computer will restart and you will be able to change the color temperature of the monitor over a wider range.

That's it for setting up the program. f.lux finished. The program automatically starts when the computer boots and begins its useful work, adjusting the brightness (color temperature) of your monitor depending on the time of day and making your work at the computer as comfortable as possible for the eyes.

Perhaps at first it will seem to you that changing the color of the monitor by the program f.lux distorts the image visible on the screen too much (especially in the evening and at night). But if you let this program work for at least a day, you will probably notice that your eyes get tired much less, and you work at the computer much more comfortably.

Sometimes, of course, you need to do such work on a computer when color distortion is extremely undesirable (working with graphics, video color correction, etc.). In this case, the program f.lux can be disabled for 1 hour by right-clicking on the program icon in the tray and selecting the item from the menu "Disable for an hour":

If you have read this far in the article and still do not have a clear idea of ​​how the program is installed, operated and configured f.lux, then watch a short two-minute video about this program:

Advice: For easier viewing of the video, expand it to full screen using the button.

As you can see from this video, installing and configuring the program f.lux takes a little over a minute. You just need to set it up once and it will automatically start taking care of your eyes.

Looking online for reviews of f.lux, I came across the statement that, due to its preventive effect, f.lux is the first program that any person who spends a long time sitting at their computer should use. I completely agree with this conclusion, I use it myself f.lux and I invite you to see from your own experience how useful this little computer program is for your eyes.