Monitor Brightness Plus

Control your external monitor's brightness and Windows Night Light right from your Stream Deck. Monitor Brightness Plus works on every Stream Deck model with keys – no Stream Deck + required. On a Stream Deck +, turn a dial to dim or brighten the display by a step you choose (1–25% per click), press it or tap the touch strip to jump straight to 100%, or hold it to drop to 0%.

Features

Brightness on a key

- Press for 100%, hold for 0%, just like the dial

- Or pick another key action: increase or decrease (hold to keep changing), set a fixed level, or cycle through levels such as 100, 50, 0

- The key shows the current brightness as a percentage

Brightness on a Stream Deck + dial

- Dial rotation adjusts brightness by a configurable step

- Tap or press: 100% brightness

- Hold or long-tap: 0% brightness (hold time adjustable)

- The touch strip shows the current brightness with a live percentage and progress bar, under a custom title

Night Light

- On a key: toggle, turn on or turn off Windows Night Light

- On a dial: turn to change the Night Light strength, press or tap to switch it on or off

- The key and the touch strip show whether Night Light is on, also when you change it in Windows Settings

For every action

- Control all monitors at once or pick a single monitor per key or dial

- Fast rotation is handled smoothly and verified against the monitor, so the display always ends up at the value shown

- A warning icon appears on the action if the monitor does not respond

Requirements

- Windows 10 or 11, Stream Deck 6.9 or later

- Any Stream Deck model with keys; dial features need a Stream Deck +

- An external monitor with DDC/CI enabled in its on-screen menu (developed and tested with an Alienware AW2524HF)

- No extra software needed: brightness is set through the Windows monitor API, and no data leaves your computer

Tips

If brightness does not change, make sure DDC/CI is turned on in your monitor's menu. Some docks and adapters do not pass DDC/CI through, and features like dynamic contrast or HDR modes can lock brightness. Built-in laptop displays are not supported.

A few seconds after you change the Night Light strength, Windows re-applies the display colours once. This can show as a brief flicker, mostly on dark or video content. Windows does the same with its own Night Light slider, so this is expected and not a plugin error.

AI disclosure: AI tools were used to assist with parts of the plugin code and this description. All functionality has been tested on real hardware.

First release. New compared to Monitor Brightness:

• No Stream Deck + required: the Brightness action works on every Stream Deck model with keys (short press 100% / hold 0%, increase, decrease, a fixed level, or cycling through levels)

• New Night Light action: switch it on a key, adjust its strength on a dial; changes made in Windows show up on the device too