联想笔记本亮度无法调节（Lenovo notebook brightness can not be adjusted）.docVIP

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2017-08-02 发布于河南
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联想笔记本亮度无法调节（Lenovo notebook brightness can not be adjusted）.doc

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联想笔记本亮度无法调节（Lenovo notebook brightness can not be adjusted） Lenovo in the official forum to see, I hope useful to you friends, I have not shared the first test. I met the same problem as you, is also a Z460310M graphics card, hotkey and power management are properly installed and upgraded NVIDIA official 266.58 driver to adjust the brightness of failure. Later contacted Lenovo online service, they can not solve. But their exploration, in the online search a lot of information, their comparative debugging, spent the afternoon finally understand. Now write the ideas and methods, the same method should be able to solve most of the same problems video cards. First of all, there is a NVLT.inf configuration file in the decompression of the public version of the driver in the Display.Driver folder, and only Lenovo VGA configuration file of the same name, this file is the public version ready for lenovo. Searching the web for information, the problem is really on this configuration file. The next thing to do is to change this file, but I dont know how to change it. Im looking for data. Most of them are 130 video cards. He added hardware ID to make drivers that could not be installed successfully installed. But this is different from our situation, our graphics card itself can be installed properly drive, indicating that the hardware ID is already in the configuration file, the key is to find the corresponding settings to achieve brightness adjustment of the code. The following is the positioning method, open device manager - display adapter - in graphics attribute information with open attribute column for ID - hardware, then you can see your hardware ID. Such as mine is PCI\\VEN_10DEDEV_0A70SUBSYS_396D17AA Copy down, open the NVLT.inf file, search for this ID, and find the corresponding item, The results in [NVIDIA_SetA_Devices.NTx86.6.0] are as follows %NVIDIA_DEV.0A70.04% = Section062, PCI\\VEN_10DEDEV_0A70SUBSYS_396D17AA In [NVIDIA_SetA_Devices.NTx86.6.1], the result