: Controlling screen brightness, volume, and keyboard backlighting.
: If the manufacturer's site is unavailable, the driver can often be found on community-maintained databases like DriverIdentifier , which hosts several versions such as keys6x1xtw81.exe . Writing an ACPI driver - an introduction - LWN.net Acpi Fnbt0000 Driver
Navigate to the tab, then select Manual Update . Look for the Power Management category. : Controlling screen brightness
Understanding the ACPI FNBT0000 Driver: Functions, Issues, and How to Fix It Acpi Fnbt0000 Driver
Because it hooks into ACPI power management, a corrupt driver can cause lags when putting your PC to sleep or waking it up. Step-by-Step Guide to Fix Acpi Fnbt0000 Driver Errors
Look for "Airplane Mode HID Mini-driver" or "Virtual Keyboard" drivers. Important Tips