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These corrupted files in your driver are the reason your brightness slider is missing.Is your Notebook’s screen brightness not adjusting properly even when you try moving the Brightness Slider? Don’t you worry! In this guide you find invaluable insights on how to fix the “ Windows 10 brightness not working”problem. If the laptop turns off during a driver update, the files might get corrupted. a small light may turn on, showing that the Fn key is locked Why Is My Brightness Slider Missing? To lock your Fn key, you can press Shift + Fn. Instead of the function keys, the up/down arrow key may also work. You can press Fn and function keys, on the top of the keyboard, with the brightness sign (this will look like a sun/bulb) to adjust your brightness level. Related Question How Do I Turn On Fn Keys for Brightness? So, make sure you have disabled the extension to increase the brightness. This mode dims the overall brightness and gives your screen a warm tone.
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If you use extensions that help change the brightness level, check if the night mode is turned on. You can try to change the brightness from the taskbar if your keyboard doesn’t work.
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If you are trying to change your brightness and nothing works, check if the keyboard works properly. However, depending on the issue, you might have to restart your laptop multiple times for the problem to fix. Sometimes, just restarting your laptop can solve the issue with the brightness. For these laptops, you can remove the battery for five to ten minutes to fix your brightness issue. Press the power button four to five times before installing the battery to discharge all the capacitors. We can easily remove the battery from some laptops, as the batteries are accessible without opening the insides. Removing the battery will discharge the capacitors. These small data can be the stopping you from adjusting the brightness. This small amount of charge holds some data in the capacitors inside your laptops.
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Since the battery is attached to your laptop, there will always be some current running inside it, even when you shut it down.
LAPTOP BRIGHTNESS NOT CHANGING DRIVERS
(Icons on these drivers are slightly faded.) Right-click and uninstall all these drivers.If you have any hidden devices, they will appear under Generic PnP Monitors. If you have “Lower screen brightness when using battery saver” turned on, you cannot change the brightness level when in power-saving mode. If you want to choose the percentage at which the battery saver turns on click “Turn battery saver automatically on at.” Adjust the percentage.For windows 10: Adjust the percentage (5% to 100%).Under Battery, click on Battery saver.Then go to Settings > System > Battery.You can change this setting following these steps. In some laptops, you cannot change the brightness if it is in power-saving mode. Search for Sensor Monitoring Service and double click on it.Uncheck the checkbox that says “Help improve battery by optimizing the content shown and brightness”Īnother way you can disable the adaptive brightness is from Services.Under “Brightness & color” click on Brightness. Then go to Settings > System > Display.To enable or disable the adaptive brightness, please follow these steps. Under “Choose or customize a power plan”, click on “Change plan settings”.Go to Control Panel > System and Security, then choose Power Options.Please note that you can only find the adaptive brightness feature in Ultimate, Professional, and Enterprise editions of Windows 10. If the laptop you are using does not have an Ambient Light Sensor, it cannot adjust the brightness according to the surrounding. We cannot change the brightness unless we turn this setting off. This tool adjusts your brightness so that you have longer battery life. Change the Adaptive BrightnessĪdaptive brightness is an effective tool in Windows that allows the laptop screen to adjust to the surrounding brightness level automatically. If you cannot adjust the brightness level on your laptop, here are a few solutions that might work for you. How to Fix “Laptop Brightness Not Changing”? Note: A display ribbon cable is a set of flexible cables on your laptop that connects your screen with the motherboard. If the laptop is constantly in sleep mode.Why Can’t I Adjust My Screen Brightness?įollowing are some reasons you cannot change your brightness. Now, let’s discuss a few reasons for this issue along with the solutions. This can be due to various bugs and glitches on Windows. However, you may face difficulties while trying to adjust the screen brightness to your surroundings. If the brightness on your laptop screen and the natural lighting of your surrounding do not match, you might get eyestrain.