At times, especially after upgrading to Windows 10 or after performing a clean install of Windows 10, you might notice that the brightness controls on the keyboard or brightness settings in Control Panel are not working. If display brightness settings are not working, it’s likely because of faulty or outdated graphics driver.

• Lenovo Brightness Control Not Working Windows 10
• Lenovo Ideapad P400 Brightness Control Not Working Windows 10

Lenovo Brightness Control Not Working Windows 10

Lenovo Ideapad P400 Brightness Control Not Working Windows 10

Let us throw some light on the type of issues detected – few machines brightness slider refuses to get adjusted; in some PCs, the brightness control went missing whereas there were computers whose hotkeys failed to regulate the brightness level and many more such cases distressed the users a lot. Thus focusing on these troubles, their workouts are represented below – How to Fix Brightness Control Not Working in Windows 10 1.