In my laptop, Fn+F2 switch power of wireless and blue-tooth. This is output of acpilisten, when i press Fn+F2. Hotkey ATKD 0000005d 00000019 hotkey ATKD 0000007e 00000009 and, folloing is output of xev for Fn+F2Between the ctrl and Windows key on the lower left-hand corner of your laptop keyboard resides the function (Fn) key.On the other hand, some keyboards also have Fn. Some of you may think this key does nothing. The reason for this is because the Fn key works in a specific way. It is a modifier key that is used on most laptop models to activate secondary or special functions of other keys. The keys that work in conjunction with the Fn key will usually have a blue symbol or blue word displayed (the Dell laptop model symbols are white). I like to know how Fn keys work in my laptop.
Check any function key settings in the BIOS. Learn more about the onscreen keyboard in Windows.If the lock is off, then the default function should work. Click the Fn key in the onscreen keyboard to make it show all function keys. As an alternative to showing the function keys in the Touch Bar, you can use the onscreen keyboard: From the Windows menu, select Windows Ease of Access. You might need to run Windows troubleshooter, disable Filter Keys, update drivers, configure VAIO service (for VAIO owners), etc. There are, however, some general methods used to solve this problem. Despite these features, some users report that the F7 or F9 keys do not work and also that no function keys trigger any actions.You might have experienced problems with these function keys, but the cause can be difficult to ascertain, since types of keyboards on computers and laptops vary. In some cases, the F7 and F9 keys do not have a specific function, however, they might be used as shortcuts in certain programs such as Microsoft Word or Microsoft Excel. The keys can also be used in combination with the Alt (Alternate) or Ctrl (Control) keys.Using these "F" keys can make the computing experience easier and quicker, and they can be used as shortcuts to perform various actions. How To Fix It?Most computer keyboards have twelve function keys from F1 to F12, each triggering a special function defined by the operating system or a currently running program. Windows includes a number of troubleshooters designed to quickly diagnose and automatically resolve various computer problems. Run Windows TroubleshootersTry one of the Windows troubleshooters - these might solve this problem without the need to use more complex solutions. Combo Cleaner is owned and operated by Rcs Lt, the parent company of PCRisk.com read more. You will need to purchase the full version to remove infections and eliminate computer errors. These services are responsible for running available programs and managing many system settings and resources. Configure ServicesWindows Services (also know as services.msc), are used to modify how Windows services (and other services) run on your system. See if it finds and fixes any problems with your computer keyboard settings. Windows will start looking for problems related to devices and hardware.Now select the "Keyboard" troubleshooter and click the "Run the troubleshooter" button again. To start troubleshooting, go to Settings and type "troubleshoot", and then select "Troubleshoot" from the list.Find the "Hardware and Devices" troubleshooter under "Find and fix other problems", select it and click the "Run the troubleshooter" button. In this guide, we show how to run the built-in Hardware and Devices troubleshooter and the Keyboard troubleshooter. How Do Function Keys Work Install Keyboard DriversAIt is rather like a translator between software and hardware, since they are often created by different manufacturers, companies, or people. Reinstall Keyboard DriversA device driver is software that informs the operating system and other software how to interact with particular hardware. See if the function keys on your VAIO laptop are now working without any problems. In the Run dialog box, type "services.msc" and press Enter or click "OK".Find the "VAIO Event Service", right-click it and select "Properties" from the contextual menu.Find "Startup type" and make sure that it is set to "Automatic" or "Automatic (Delayed Start)" and click "Apply" to save the changes (if there were any made). Press the Windows (Win) key + R, or simply right-click Start and select "Run" from the contextual menu. If you are using a Sony VAIO laptop, you will need to check the "VAIO Event Service". In order to reinstall Keyboard drivers, open Device Manager by right-clicking the Start button and selecting the "Device Manager" result from the contextual menu, or type "device manager" in Search and click the "Device Manager" result.In Device Manager, you will see a list of devices connected to your computer. If the appropriate driver is not installed, the device might not function properly, if at all. In most cases, computers are unable to send and receive data correctly without drivers. Brave dwarves gameIt should detect missing drivers and install them.If reinstalling keyboard drivers does not solve the problem, you might need to update or reinstall all other drivers as well. If for some reason Windows does not install the missing (uninstalled) drivers, go to Device Manager again and right-click your computer name, select "Scan for hardware changes". The missing keyboard drivers should be installed by Windows automatically. Drivers are downloaded through Snappy Driver Installer in 'driverpacks', which are simply collections (packs) of drivers for various hardware such as sound devices, video cards, network adapters, etc. Snappy Driver works with both 32-bit and 64-bit versions of Windows 10, Windows 8, Windows 7, Windows Vista, and also works with Windows XP. Having offline drivers gives Snappy Driver Installer the ability to have access to fast driver updates, even if there is no active Internet connection on your computer. Snappy Driver Installer (SDI) is a powerful free driver updater tool for Windows that can store its entire collection of drivers offline. Remove the battery and hold down the Power button for about 30 seconds. If there is HotKey software installed, uninstall it as well.If you are using an HP Notebook, shut it down and unplug the AC adapter. To uninstall it, simply go to the Programs and Features window (where all installed programs are listed) and uninstall it. It is possible that the default driver is interfering with the Windows operating system. Some Dell users report that this simple combination solved the problem for them in a second.We hope this guide was helpful and you were able to make the function keys work again. If you know of other solutions to this problem, not mentioned in our guide, please share them with us by leaving a comment in the section below.
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