Skip to content
Servey logoServey

How to blank your Mac's screen while you work on it remotely

By Janesh Kapoor · · 6 min read

There is a detail about remote access that most people only think about once: while you are working on your Mac from somewhere else, its monitor is still on, still showing your desktop, and still visible to whoever is in the room. In an office, a shared flat or a home with visitors, that is a real problem - and on macOS specifically it is the feature most remote tools handle worst. Here is why it is hard, what the options actually do, and how Servey does it differently.

Frequently asked questions

Can I blank my Mac's screen while using it remotely?
Yes, but how well it works depends entirely on the tool. The approach that holds up on macOS is to blank the display after the point where the screen is captured, so the monitor goes black while the remote stream keeps showing the real desktop. Servey's Privacy Mode does this by forcing the display gamma to zero, which covers every app, every space, every connected monitor and the cursor. The older approach of installing a virtual display driver needs a kernel or system extension and is unreliable on modern macOS.
Why does TeamViewer's black screen not work on my Mac?
Because the feature depends on a display driver that macOS increasingly does not allow. The traditional privacy screen adds a virtual display and moves your desktop to it, which on macOS requires a kernel extension or a DriverKit system extension. Both need approval in Privacy and Security and a reboot, and kernel extensions on Apple silicon also require reduced security mode. The result is a feature that is often missing, greyed out, or broken by an OS update. This is an Apple design decision rather than a vendor failing.
Does blanking the screen stop someone using the Mac?
No, and this is an important limit. Blanking hides the picture; it does not disable the Mac's own keyboard, trackpad or mouse. Someone sitting at the machine can still type and click, even though they cannot see what they are doing. If your concern is a person with their hands on the keyboard rather than their eyes on the monitor, lock the Mac or put it somewhere else - a privacy screen is the wrong control for that.
Can I get a black screen with macOS Screen Sharing?
Effectively yes, using virtual displays. In the Screen Sharing app you can connect to a virtual display instead of the Mac's own display, which gives you a separate desktop the physical monitor never shows. It needs Apple silicon on both ends and recent versions of macOS, and it is a new workspace rather than the session already on screen. Within those conditions it solves the problem completely and costs nothing.
Is it safe if the connection drops while the screen is blanked?
With Servey, yes. Privacy Mode is restored on every stop and disconnect path, and macOS restores the display gamma automatically if the app exits for any reason including a crash, so a dropped connection cannot leave the Mac stuck on black. This matters more than the feature itself, because a privacy screen you do not fully trust is one you will never actually switch on.

Servey puts your Mac in your pocket. Launching soon.