Can't adjust screen brightness on laptop
Why can’t the brightness of Lenovo laptop be adjusted?
1. Taking the Lenovo laptop ThinkBook14 and Win10 system as an example, the reasons and solutions for the brightness adjustment failure of Lenovo laptop : It may be that the computer is set to "night mode". Generally, the brightness of the computer cannot be adjusted at will in night mode. Solution: Turn off the computer's "night mode" function.
2. The notebook brightness cannot be adjusted. It may be that the driver for the special function keys is not installed, or the driver is damaged.
3. Check the relevant shortcut keys or touchpad settings. It may be that these settings have changed, causing the brightness to be unable to be adjusted. Manually adjust the monitor's brightness settings. If you cannot adjust the brightness directly in the operating system, you can enter the monitor's menu to adjust it.
Why can’t the laptop screen brightness be adjusted?
1. Check the hardware problem: If all methods have been tried, but the brightness still cannot be adjusted, it may be caused by hardware problems. You can try contacting the computer manufacturer or repair center to resolve the issue. I hope these methods can help you solve the problem of unable to adjust the brightness of your laptop.
2. You cannot adjust the brightness of the screen after entering the system. There are two possibilities for this situation. One is that you need to install a software. Find the hotkey driver software in the software download section of the official website and install it. Use key combinations to adjust screen brightness normally.
3. The above situation occurs because after the system upgrade, the original notebook power management program is not suitable for the new system. However, many notebooks must install this program to adjust the brightness, and it must match the brand and system. Just fine. The solution is to download and install it from the official website.
4. There are two main reasons. One is because of the problem of Intel's i-series CPU integrated graphics driver, especially the core graphics driver of the first generation CPU. The second reason is that there is an error in the brightness value of the computer.
The brightness of the laptop cannot be adjusted
1. If the brightness of the laptop cannot be adjusted, you can try the following methods: Check the power supply and battery: If there is no problem with the power supply and battery of the laptop, you can jump Go through this step. If your laptop's battery is low, the computer may limit brightness.
2. You cannot adjust the brightness of the screen after entering the system. There are two possibilities for this situation. One is that you need to install a software. Find the hotkey driver software in the software download section of the official website and install it. Use key combinations to adjust screen brightness normally.
3. The above situation occurs because after the system upgrade, the original notebook power management program is not suitable for the new system. However, many notebooks must install this program to adjust the brightness, and it must match the brand and system. Just fine. The solution is to download and install it from the official website.
4. Check whether the computer is powered on and whether the computer's power light is on. It may be due to the power management policy. If it is an extended screen, please check whether the monitor is powered on and whether the monitor's power light is on.
The above is the detailed content of Can't adjust screen brightness on laptop. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1385
52
System Restore prompts that you must enable system protection on this drive
Jun 19, 2024 pm 12:23 PM
The computer has a restore point, and when the system is restored, it prompts "You must enable system protection on this drive." This usually means that the system protection function is not turned on. System protection is a feature provided by the Windows operating system that can create system restore points to back up system files and settings. That way, if something goes wrong, you can revert to a previous state. When the system fails and you cannot enter the desktop to start it, you can only try the following method: Troubleshooting-Advanced Options-Command Prompt Command 1 netstartvssrstrui.exe/offline:C:\windows=active Command 2 cd%windir%\system32 \configrenSYSTEMsy
What should I do if win10 does not switch users? Win10 login interface does not have the option to switch users. Solution
Jun 25, 2024 pm 05:21 PM
A problem that Windows 10 users may encounter is that they cannot find the switch user option on the login interface. So what should I do if there is no switch user option on the win10 login interface? Let this site give users a detailed explanation of the problem of not switching user options in the win10 login interface. Detailed solution to the problem of switching user options on the Win10 login interface: Check user account settings: First, make sure you have multiple user accounts on your computer and that these accounts are enabled. You can check and enable the account by following these steps: a. Press Win+I keys to open Settings and select "Accounts". b. Select "Family & Others" or &ld in the left navigation bar
How to permanently turn off real-time protection in win10? How to disable real-time protection function in win10 computer 0
Jun 05, 2024 pm 09:46 PM
Although the comprehensive anti-virus software that comes with Windows 10 system can continuously protect the security of your personal computer, sometimes it may also affect certain downloaded files. For some users, it may be more appropriate to temporarily turn off the real-time protection function. But many users don’t know how to permanently turn off the real-time protection feature on win10 system. 1. First, press the "Win+R" keys to open the run window, enter the "gpedit.msc" command to open the local Group Policy Editor interface; 2. Then, in the opened interface, click "Computer Configuration/Administrative Templates/ Windows Components/MicrosoftDef
How to restore the default wallpaper in win10? One trick to quickly restore the default wallpaper in Windows 10 system
Jun 02, 2024 pm 02:07 PM
In Windows 10 system, if you want to return to the system default wallpaper, you can follow the following steps: 1. Right-click a blank space on the desktop and select Personalize in the pop-up menu. 2. This will open the Personalization window in Settings. In the left menu, click Background. 3. Under the "Background" settings, find and click the drop-down menu next to "Choosepicture", and then select Windows Default (Windows Default) or directly select a picture that looks like the default wallpaper in the picture preview below ( if there are multiple options). 4. If your system has multiple versions
What should I do if Win10 takes a screenshot and crashes? How to solve the problem of Win10 flashing and then disappearing after taking a screenshot?
Jun 02, 2024 pm 12:48 PM
There are many reasons why the screenshot disappears after taking a screenshot in Win10. Users can first check the screenshot save location or adjust the screenshot settings, or check the animation effect to check it. If it really doesn't work, you can also choose to update the driver and operating system to perform the operation. Let this website carefully introduce to users the analysis of the problem of Win10 disappearing after taking a screenshot. Analysis of the problem after win10 takes a picture and it flashes and disappears 1. Check where the screenshot is saved: When you use the Win+PrtSc (PrintScreen) key combination to take a screenshot, the screenshot is usually saved in the C:\Users\YourUsername\Pictures\Screenshots folder. please
Windows cannot start the Windows Audio service Error 0x80070005
Jun 19, 2024 pm 01:08 PM
The guy's computer appears: Windows cannot start the WindowsAudio service (located on the local computer). Error 0x8007005: Access denied. This situation is usually caused by user permissions. You can try the following methods to fix it. Method 1: Modify the registry to add permissions through batch processing, create a new text document on the desktop, save it as .bat, and right-click the administrator to go far. Echo==========================EchoProcessingRegistryPermission.Pleasewait...Echo================== ========subinacl/subkey
What to do if the Win10 Task Manager crashes? How to fix the Win10 Task Manager crash?
Jun 25, 2024 pm 04:31 PM
Hello everyone, have you ever encountered the situation where the Windows 10 Task Manager keeps crashing? This function helps us a lot, allowing us to quickly see all running tasks, which is very convenient to use, right? However, some friends said that they encountered this problem and didn’t know how to solve it, so let me share with you the specific solution! Solution to Win10 Task Manager crash 1. First, press and hold the "Win" + "R" keys on the keyboard to open Run, enter "regedit" and press the Enter key. 2. Expand the folders and find "HKEY_CURRENT_USERSoftwareMicros
How to turn off popular searches in Windows 10 system? List of methods to close popular searches in Windows 10 system
Jun 03, 2024 pm 08:46 PM
In win10 system, hot search is one of the more practical methods, but sometimes it can cause certain troubles. So how to turn off hot search? Let’s take a look below! Step 1: Open the Settings app First, click on the Windows icon in the lower left corner of the screen and select the Settings app. Step 2: Enter "Personalization" settings In the "Settings" app, click the "Personalization" option. Step 3: Select the “Search” option In the “Personalization” settings, select the “Search” option. Step 4: Turn off popular searches. In the "Search" option, find the option "Show popular searches in search" and turn it off. Professional Tool Recommendation 1. Xiaozhi Soso Xiaozhi Soso—Quick Search and One-Click Positioning—Professional Computer Search Tool
