Win10 screen brightness can not be adjusted, Win10 screen brightness can not be adjusted solution

Win10 official version launched in just a few days, there are tens of millions of computer enthusiasts have installed and upgraded Win10, Xiaobian also joined the first time to upgrade the camp. However, after upgrading Win10, the brightness of the small-sized laptop screen is very high, and it looks very glaring, but the brightness of the screen cannot be adjusted. By looking up the information, in some Win10 posts and forums, many Win10 users have encountered similar problems, and most of them have not found a solution. As a small fan of computer enthusiasts, I have been playing computer for many years. There are still some experiences in solving this type of problem. The following are two kinds of solutions for the research and testing of computer Pepsi.com. Come and try it.

One, Win10 screen brightness can not adjust how?

After many computer users upgraded Win10, there is a problem that the screen brightness cannot be adjusted normally. Some screens are too bright and dazzling, but the screen brightness cannot be lowered; others are the screen brightness is too low, the screen looks Feeling. So what is the reason for the brightness adjustment of Win10 screen, how to solve it?

First of all, the reason is that the screen brightness can not be adjusted due to the upgrade or installation of Win10, so it is obvious that the problem is in the compatibility of Win10. The brightness of the Win10 screen can not be adjusted, most of which are caused by the following conditions:

1) The computer is equipped with dual graphics cards, that is, equipped with a separate graphics card, and the CPU also has a built-in core graphics card;

Because Intel Core The i3/i5/i7 series processor has a built-in core graphics card, and the Core i series processor has been released for several generations. Sometimes, due to the inconsistent driver version, the CPU core graphics card and the discrete graphics card will conflict, resulting in the screen brightness not being adjusted properly.

2) Win10 system installed with one-click Ghos tool;

3) Update the graphics driver with tools such as Driver Wizard or Master Lu.

Because the one-button Ghost reinstall system or the driver wizard has updated the graphics card driver, the graphics card version will change, and some brands of computer graphics cards can only use the drivers that their brand has debugged, and through Ghost and driver wizards. The installed graphics drivers, usually some common versions, cause the driver versions to be inconsistent, resulting in compatibility issues that can cause the screen brightness to be unadjustable.

Second, Win10 screen brightness can not be adjusted solution

If you encounter Win10 screen brightness can not be adjusted, how to solve it? The following are some of the more useful methods for computer Pepsi.com, I hope to help everyone.

Method 1: Modify the registry to solve the Win10 screen brightness can not be adjusted

1, first use the Win+R combination shortcut to open the Win10 run dialog box, and then enter the command after opening: regedit , click "OK" below, as shown below.

2, after opening the registry editor, expand the location: HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\Control\\Class\\{4d36e968-e325-11ce-bfc1-08002be10318}; then 0000 and 0001 The value of KMD_EnableBrightnessInterface2 can be changed to 0.

3. After the completion, restart the computer.

Note: If there is no 0001, only change 0000, and if you can't find the KMD_EnableBrightnessInterface2 registry key (WWW.PC841.COM computer Pepsi), you can create a new one. REG_DWORD.

Some netizens successfully solved the problem that Win10 screen brightness could not be adjusted through the above methods, but the author still did not solve the problem through the above method. The small series used the notebook, which was solved by the following method 2.

Method 2: Uninstall the graphics card driver

1, open the Win1O task manager, and then expand the "display adapter" to see Up to now, the computer's dual graphics card, here we need to uninstall these two compatible graphics card drivers. The specific method is to right-click on the name of the video card driver that needs to be downloaded, and then click “Uninstall”, as shown in the figure below.

2. In the pop-up confirmation uninstallation interface, be sure to check "Delete driver software for this device", and then click "OK" at the bottom to uninstall.

When Xiaobian unloaded the core graphics card and the discrete graphics driver built into the Win10 computer, it was found that the notebook screen could be adjusted, but this time it is the Windows basic display driver provided by Win10. If you want to install the laptop-compatible driver, you also need to download the driver according to the specific brand model of your notebook, and then install it.

How to find the graphics card driver corresponding to the brand model of the computer, you can look at a tutorial shared by Xiaobian before: [How to adjust the brightness of Lenovo Z500 screen Lenovo Z500 brightness can not be adjusted Solution】.

If you think that it is very troublesome to find a brand driver, you can also try to uninstall the core graphics card, and only try to keep the discrete graphics card. Sometimes this method can also temporarily solve the problem that the screen cannot be adjusted. You can also set the screen brightness to the appropriate level, and then use the driver wizard to complete the graphics card driver installation again. Although the screen brightness cannot be adjusted after installation, at least the brightness is currently just adjusted.

Method 3: Other solutions

Because Win10 has just been released, compatibility is also understandable. If you can't adjust the brightness according to the above method, you can try to check Windows. Update, there is a problem that may or may not fix the brightness adjustment of Win10 screen.

There are many reasons for the brightness adjustment of Win10 screen, and it is more complicated. The above are two kinds of effective solutions recently discovered by Xiaobian. It is not guaranteed to be useful to every user, but for most users. It should be helpful, welcome to share, thank you.