STREAM DECK PLUGIN
Your displays, within reach. Physical hardware monitor brightness, contrast, speaker volume, video input switching, and custom lighting scenes right from your Stream Deck.
Unlike software dimmer utilities that simply draw a dark transparent layer over your screen (killing contrast and colour accuracy), MonitorDeck directly controls the physical backlight of your monitors via industry-standard DDC/CI and Apple Display Services.
Control specific monitors independently or adjust every display on your desk simultaneously with a single key or dial turn. Keep brightness matched throughout changing daylight without touching clumsy monitor buttons.
Experience smooth analog rotary brightness and contrast adjustments on Stream Deck +. View glanceable live brightness percentages on the Stream Deck Neo Infobar display.
Effortless hardware display control engineered directly for physical keys, touchstrips, and rotary encoders.
Step brightness up and down in 1%, 2%, 5%, or 10% increments, or cycle through your favourite brightness stops with consecutive key presses.
Turn the Stream Deck + dial to smoothly modify brightness, contrast, or monitor-speaker volume. Tap the touchstrip to switch active target displays on the fly.
Toggle between HDMI, DisplayPort, and USB-C sources across work laptops and gaming rigs. Trigger custom Work, Cinema, and Night lighting scenes instantly.
Seven powerful display management actions ready to assign to your keys, dials, and touchscreens.
Step brightness up or down by 1%, 2%, 5%, or 10%. Target your main screen, specific monitors, or All monitors at once.
Keypad
Step through preset brightness stops on repeated presses. Configure custom comma-separated percentages (e.g. 20, 50, 80, 100).
Keypad
Rotate to adjust brightness, contrast, or speaker volume. Tap touchstrip to switch displays; push dial to toggle levels or standby.
Stream Deck + Encoder
Switch monitor video source to DisplayPort 1/2, HDMI 1/2, or USB-C, or toggle between input A and B without opening OSD menus.
Keypad
Trigger coordinated settings across displays in one press: Work (80%), Night (20%), Cinema (15% bright / 75% contrast), or Custom.
Keypad
Send standby or wake requests to compatible external screens via DDC commands without putting your host computer to sleep.
Keypad
Display current brightness percentages for your active or all connected displays directly on the Stream Deck Neo Infobar.
Neo InfobarChoose between MonitorDeck for power users with multi-monitor desks or MonitorDeck Lite for quick single-screen brightness.
| Feature | MonitorDeck (Pro) | MonitorDeck Lite |
|---|---|---|
| Primary-display brightness keys | ✓ | ✓ |
| Multi-display selection & "All monitors" sync | ✓ Yes | Primary monitor only |
| Stream Deck + rotary encoder dials | ✓ Yes | ✗ |
| Stream Deck Neo Infobar display | ✓ Yes | ✗ |
| Brightness cycle levels | Custom sequence | Fixed 20, 50, 80, 100% |
| Video input switching (HDMI / DP / USB-C) | ✓ Yes | ✗ |
| Display scenes (Work, Cinema, Night) | ✓ Yes | ✗ |
| Contrast & monitor-speaker volume | ✓ Yes | ✗ |
| Display standby & wake requests | ✓ Yes | ✗ |
Monitor I2C/DDC communication buses operate at slow clock rates. MonitorDeck features intelligent debouncing and write spacing to avoid flooding or locking up external monitor microcontrollers.
Built with native universal helpers: IOAVService and IOI2C on Apple silicon and Intel Macs, Apple Display Services for built-in displays, and native Win32 DDC APIs on Windows.
No terminal commands, Homebrew packages, Python environments, or root drivers required. Everything comes bundled in the plugin package and runs out of the box.
Monitors vary in what VCP codes they accept. When a display reports an unsupported control or an unconfirmed value, MonitorDeck indicates it clearly rather than faking a success state.
MonitorDeck communicates exclusively across local operating system display buses directly to your connected monitors. It has no network permissions, no telemetry, no analytics, and no remote servers.
Operating Systems: macOS 13 or later (Apple silicon & Intel) • Windows 10/11 x64.
Monitors: Third-party external monitors with DDC/CI enabled in OSD, Apple Studio Display, Apple Pro Display XDR, and MacBook built-in Retina displays.
Connections: Direct HDMI, DisplayPort, and USB-C/Thunderbolt cables. (DDC/CI must be supported by any intermediate dock/adapter).
Software: Requires Stream Deck software version 7.6 or later.
Comprehensive walkthrough of DDC/CI on-screen setup, multi-monitor configuration, input toggling, and troubleshooting connection paths.