BrightnessAdjust

Problem

My external monitor (LG 27MU67-B) is too bright at night. It doesn't have automatic ambient light adaption and I don't want to adjust it manually all the time.

Idea

The laptop (Surface Pro 3) driving the monitor does have an ambient light sensor. Why not use that one?

Solution

1. Read current internal monitor brightness via WMI (WmiMonitorBrightness.CurrentBrightness)
2. Update the external monitor brightness via DDC/CI (SetMonitorBrightness)
3. Repeat