With the computer powered off, press the power button.
Ensure that the Keyboard backlit option is enabled in the BIOS.For more information, see Dell Knowledge Base article Dell BIOS Updates. Auto Input Only - The keyboard illuminates when the internal keyboard, touchpad, or pointstick is used.Įnsure that the BIOS is updated to the latest version.To set the Ambient Light Sensor to Enable, perform the following steps:Ĭlick the + sign next to Video in the System Configuration menu.
When using this setting, the Ambient Light Sensor has to be set to Enable in the BIOS. On an older version of the BIOS, the options may be: When enabled, you can use the brightness level keys on the keyboard to set the brightness level. Note: There may be another option listed under Keyboard Illumination in the System Configuration menu, Keyboard Backlight with AC.