If your keyboard has a lock symbol on the Esc key, try pressing Fn+Esc to toggle the Fn lock. When locked, you can press brightness keys without holding Fn.
If you are using a desktop PC, the process depends entirely on the brand of your keyboard.
Some keyboards have a setting where the top row acts as media/brightness keys by default. If so, pressing just the sun icon works. To use normal F1–F12, you’d hold Fn. how to turn brightness up on keyboard
| Brand | Likely Brightness Keys | |----------------|----------------------------------| | Dell | Fn + F6 (up) / F5 (down) | | HP | Fn + F2 (down) / F3 (up) | | Lenovo | Fn + F11 (down) / F12 (up) | | MacBook | F1 (down) / F2 (up) – no Fn needed | | ASUS / Acer | Fn + Up/Down arrow keys |
On most laptops and some desktop keyboards, brightness controls are on the keys (or arrow keys). Look for icons that look like a sun : If your keyboard has a lock symbol on
Sometimes Windows hibernation modes prevent keyboard lights from initializing.
If the keys are unresponsive, your keyboard drivers might be outdated. Some keyboards have a setting where the top
Note: Repeatedly tapping the shortcut cycles through available brightness levels (e.g., Low, Medium, High, Off).