MyDisplay

1.2.3

MyDisplay is a menu bar app that takes control of every display on your Mac: lid, HiDPI, brightness, colour, virtual screens. Free, no account, no cloud.

MyDisplay started with a MacBook whose lid sensor died: macOS no longer knew the laptop was shut, and the screen lit up in the bag. The app reads the hinge angle itself and does exactly what macOS should do.

It adds what macOS lacks for external monitors: sharp HiDPI, DDC or software brightness, colour controls, virtual screens and shortcuts.

Features

Lid

Closed means closed

Closed with a monitor: the built-in display turns off. Closed alone: the screen stays black despite the trackpad or a Bluetooth mouse, then the Mac sleeps.

HiDPI

Sharp on any monitor

Retina mode on 2K, 4K and ultrawide monitors through a virtual screen, plus every hidden resolution and refresh rate.

Brightness

DDC and software

Brightness, contrast and volume over DDC; software dimming down to black otherwise. The Mac’s brightness keys drive the display under the pointer.

Colour

Per display

Temperature, gamma, contrast and RGB channels for every monitor.

Virtual screens

1080p to 4K

For a headless Mac, screen sharing or extra workspace, in HiDPI.

Control

Shortcuts and command line

Disconnect a display without pulling the cable, pick the main display, mirroring, global shortcuts, the mydisplay:// scheme and the mydisplay command.

What’s new

Version 1.2.3, 29 October 2026

One click on the icon opens or closes the panel exactly once: it used to open and immediately close again.

Installation

1
Download and drag
Open the DMG and drag MyDisplay into Applications.
2
Confirm the first launch
MyDisplay is signed by its author but not notarized by Apple: System Settings → Privacy & Security → “Open Anyway”.
3
In the menu bar
The icon appears at the top of the screen; for the brightness keys, allow access under Accessibility.

Questions and answers

Which Macs?

Macs with Apple Silicon (M1 or later), macOS 14 or later.

What leaves my Mac?

Nothing, unless you add a TV: then MyDisplay talks only to that TV, on your local network. No auto-update, no statistics.

Why no DDC on my monitor?

Turn on DDC/CI in the monitor’s menu. Some adapters and docks block DDC; software dimming takes over then.

Which languages?

French, Dutch, German, English, Russian and Spanish, following the Mac’s language or chosen in the app.

How do I check the downloaded file?

In Terminal, run the command below and compare the result with the SHA-256 fingerprint on the right. If a single character differs, do not open the file and write to us.

shasum -a 256 ~/Downloads/MyDisplay-1.2.3-arm64.dmg

Version: 1.2.3
Developer: IBCSC, Charleroi
Interface languages: Français, Nederlands, Deutsch, English, Русский, Español
Compatibility: macOS 14 or later
Architecture: ARM
Licence: Free, no ads
Signature: Author’s certificate (not notarized by Apple)
SHA-256 fingerprint: b660b08baab1…aeccf5