The built-in display keeps its native resolution.Mirrors the MacBook display to the external monitor so that:.Sets the system Gamma tables of the monitor to a list of zeroes.Uses DDC (if available) to set the native brightness and contrast of the monitor to 0.It can be toggled on and off using the same Control+ Command+ 6 hotkey or by pressing the power button in the Lunar UI. This simulates a power off by turning down the brightness, contrast and gamma to 0, and activating mirroring to move all windows to the built-in display. Soft power off using BlackOut | Control+ Command+ 6 can't also be used to power on the monitor (when a monitor is turned off or in standby, it does not accept commands from a connected device).works only if the monitor can be controlled through DDC (some monitors block DDC/CI commands).It works by sending a DPMS 5 message through the Display Data Channel (DDC) protocol Caveats This turns off the monitor completely, and is equivalent to pressing the physical power button of the monitor. There are two types of power off for external monitors: Hard power off using DDC | Control+ Command+ Option+ 6 Lunar can turn off an external monitor easily using keyboard shortcuts or by clicking a button. The software has the benefit of being elegant but the switch, though a bit crude, has the advantage of you knowing for sure you display is disabled because it's physically off. SwtichResX has a 10 day free trial and the power adapter comes with a 30 day return. macOS will not detect the display if the power is cut (though it will if it's in "standby" or "sleep")īoth solutions cost about the same (less than $20USD). It's an easy, non-invasive solution that will get the job done without having to install software or have daemons running that could interfere with your display. Only SwitchResX will be able to activate the displayĪnother simple solution is to use a power plug with a remote switch. This means the display in question, onceĭeactivated, will not be visible from the System or from anyĪpplication. SwitchResX includes a function to remove a display from the System's SwitchResX has a number of features including "disable display" which should deactivate it until the software turns it back on.
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