Why can t I turn up the brightness of my laptop?

Here are a few steps:

1、After entering the system, you can't adjust the brightness of the screen,There are two possibilities in this situation,One is that you need to install a software,Find Easy Display Manager in the official **** area softwareAfter installation, you can use the combination keys to adjust the screen brightness normally;

2. The second is that the graphics card driver is not installed properly, resulting in the inability to adjust the brightness, just install it. To adjust the LCD brightness in the normal system, please press the FN+key combination or press the FN+key combination. If you press FN+ or FN+ and can't adjust the LCD brightness, please go to the official **** software.

Log in, select **Center in the service center, find out the corresponding model, and select Easy Display Manager**. If you still can't adjust the screen brightness after installing the Easy Display Manager software, then please use the included driver disk and install the graphics card driver. If the drive disk is lost, you can go to the official website**center**;

3. After the driver is installed, it should be able to adjust; Open Device Manager to see if the installation is successful.

That's because your computer's shortcut driver isn't installed. So the brightness cannot be adjusted. What brand of notebook are you using, and then log in to the official**, select your machine model and the corresponding operating system, and then**shortcut driver update!

And notebooks generally use the key combination of fn + shortcut key to take effect. Didn't you hold down the fn button?

The model is not the same, and the adjustment is not the same, usually as follows.

Press a "fn" key + f1 to f10 in a sun sign, or "fn" key + up and down left and right arrow keys also have a sun sign, remember that as long as there is a sun this key is bright, can not be adjusted, means the hotkey is not installed.

The function of the fn key of the computer is driven out, find your computer brand corresponding keyboard driver, install the fn key is easy to use, you can adjust it, my computer was like this before, and then from the newly installed keyboard driver, it's good.

This should be a problem with the driver, different brands of computers are not the same, are your drivers all installed,,, you may wish to check the driver,

Go to the official website and use the shortcut key driver to try it

After entering the system, it is impossible to adjust the brightness of the screen, and there are two possibilities for this situation:

The second is that the graphics card driver is not installed properly, resulting in the inability to adjust the brightness, just install it. To adjust the LCD brightness in the normal system, please press the FN+key combination or press the FN+key combination. If you press FN+ or FN+ and can't adjust the LCD brightness, please go to the official **** software.

Factors influencing screen brightness.

1.Personal vision.

For example, a dizzy user needs to adjust the screen a little brighter, and if the user has good eyesight, it does not need to be so bright.

2.Ambient brightness.

1) When the surrounding environment is dark, try to adjust the brightness to be darker, for example, in the environment with the lights off, there is no other light source, you need to turn the brightness down as much as possible, usually to about 40%. The best advice is to turn on the lights.

2) In a relatively bright environment, you need to adjust the screen to a higher brightness, because the surrounding environment is too bright, and the screen is too dark, you need more energy to see the content of the mobile phone screen, at this time, you can adjust the brightness to about 60% to 80%.

Try the following solutions:

1. Find the computer-properties-device manager-display adapter and enable the intel graphics card after disabling it, and the computer will have a black screen after disabling the graphics card.

Press and hold the power button to turn off and turn on the graphics card.

2. Open Plug and Play in Device Manager.

If the monitor displays an exclamation mark,**39, you can directly uninstall the device driver and then restart the computer to restore the brightness adjustment function.

3. Uninstall the current notebook's integrated display.

and the independent graphics driver, and then reinstall the official graphics card driver.

First of all, make sure that the computer is in high performance mode, try all the professional methods, if it still doesn't work......

Right-click on the computer, management, and device manager, find the monitor in the column on the right, click on it, see if it is disabled, click enable, and the computer will light up all of a sudden.

1. Laptop.

The brightness adjustment method of the display is as follows:First of all, you have to look at the fn key on the keyboard and the two brightness signs (the logo is like a sun, brighten up, dim down) in that position, the two logos of the general portable are designed on the f1-f12, you can find it by taking a serious look, and then press and hold fn jian, if you want to make it brighter, then press the up sign, if you want to dim it, hold down the fn key and then tap the down sign.

2. Contrast.

The adjustment method is as follows: right-click under the empty screen, click Properties, click Settings in the prompt bar that appears, click Apply after setting the contrast, and then click OK.

Practical demonstration: The brightness adjustment of the notebook screen is realized by the combination of keys on the keyboard, you can see that there are some special symbols on the notebook keyboard F1-F12, these symbols correspond to the corresponding control functions of the notebook, and the general brightness of the notebook screen is controlled by a pair of "suns" with plus and minus signs.

There will be a special key "fn" key on the laptop keyboard, hold down the "fn" key, and then press and hold the "sun" key at the same time, you will find that the brightness of the laptop screen has changed, and some laptops will also display the progress on the screen to indicate the current screen brightness.

What should I do if the brightness of the laptop screen can't be adjusted?

Driver installation. Hold down fn, then press the volume, if it doesn't work, it means that there is something wrong with your fn key.

2. Reinstall the graphics card driver.

If the graphics card driver fails, the brightness cannot be adjusted.

3. In the case of failure to adjust the brightness, that is, the battery is insufficient to adjust the brightness, and the system lowers the brightness by default, mainly to save power, just charge it.

The laptop does not respond to adjusting the brightness, and the general reason is that the driver is not installed correctly. It is recommended to check the graphics card driver.

Here's how to quickly adjust the brightness of your laptop's screen:

1. Shortcut keys: FN (function key) + F2 (weak), FN (function key) + F3 (strong); Adjust the brightness of the screen, if the hotkeys don't work, it may be a problem with the graphics card driver, **Install the driver.

2. On the desktop, there is a power icon in the lower right corner of the taskbar (that is, an icon of battery and plug), click to open the "Select Power Plan" interface. Click "High Performance", click "Adjust Screen Brightness", in the "Select Power Plan" interface, click "High Performance", click "Change Plan Settings" on the right, and use the mouse to pull the "Adjust Plan Brightness Slider" to adjust the brightness.