How to Adjust Screen Brightness on DELL Precision 5520 Laptop

Adjusting Brightness on DELL Precision 5520

• 💡 You can adjust the screen brightness on the DELL Precision 5520 using two primary methods.
• 👆 The first method involves using the on-screen controls, accessible via mouse, touchpad, or touch input, where sliding left decreases brightness and sliding right increases it.

Using Function Keys for Brightness

• ⌨️ The second method utilizes the function keys on your keyboard: F12 to increase brightness and F11 to decrease it.

Unlocking Function Keys

• ⚠️ If the F11 and F12 keys are not working for brightness adjustment, your function keys may be locked.
• 🔑 To unlock them, press and hold the Fn key simultaneously with the Escape key.
• ✅ Pressing Fn + Escape again will re-lock the function keys.