However, this can be distracting due to the activity LED built-in on the camera.

Optionally, a periodic sampling interval can be specified. This keeps the backlight ready on first-use. The sampling and updating process will be triggered by a power event (sleep/wake, display on/off) or by user activity timeout on the built-in keyboard/mouse. The level is mapped to a screen brightness percentage using a configurable calibration curve. A basic-low resolution snapshot is taken and the average intensity level is computed to use as the proxy for ambient light level. The screen backlight is automatically illuminated by sampling the integrated camera to mimic an ambient light sensor. Settings are persisted across power events (sleep/wake, display on/off) for a hands-off experience, unlike the stock factory behavior which resets backlight across power events. The keyboard brightness level changes along with the existing 'Fn+Space' keyboard shortcut for backlight level. After an adjustable inactivity timeout, the backlight is darkened. The keyboard backlight is automatically illuminated whenever the user interacts with the built-in keyboard/mouse hardware. They can be individually disabled or enabled. Settings supporting these two features are configurable through the GUI context menu (right-click) on the system tray.

This project provides a background Windows system tray application that augments the keyboard and lcd screen backlight controls through software. Keyboard backlight control is triggerred by a user-activity timeout, and screen backlight control samples the ambient light level using the integrated camera.

Additional behaviors added by this program mimic some automations found on other devices.

These laptops do not come with an automatic control mechanism for either. X1c, X1e, P1) to control the keyboard backlight and lcd screen brightness (backlight) on Windows installations using a system-tray application. Automation tool for certain Lenovo ThinkPad laptops (ex.

How to turn off keyboard light lenovo