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This article applies to all TeamViewer customers with a Business, Premium, Corporate or Tensor plan.

 

 

General

With the TeamViewer Black Screen-feature, you can hide the remote screen in connections to a Windows or Mac computer into a full-screen security image.

With this, you can make sure to protect your privacy at work by hiding the content of the remote screen with TeamViewer Black Screen.

Once this feature is activated,

  • the remote computer's screen gets immediately hidden by the TeamViewer security image (see below)
  • the input on the remote computer gets also disabled


Explaination2.png

To enable this feature, please follow our How-to guide.


Compatibility

You can turn the remote screen black in connections from any desktop platform OS (Windows, macOS and Linux) to any Windows device running Windows 7, 8 and 10 and to any macOS device (only for TeamViewer version 15.8 and higher). Turning the remote screen black of Linux devices is currently not supported. 

 

Prerequisites for macOS

Black screen on macOS is only available if a TeamViewer version 15.8 or higher is running on the remote Mac.

Due to technical restrictions, it is only possible to activate the black screen, if “Start TeamViewer with System” is selected.

In addition to that, Accessibility permissions need to be granted for the TeamViewer application. This applies also to users on macOS 10.13 who did not need this permission earlier for a successful TeamViewer remote support.
Please keep in mind: Since 10.14 (Mojave) this setting is a pre-requisite to be able to control the remote Mac.

Accessibility.png

For an optimal remote access setup, we recommend the following:

  • Deactivate Siri, as it’s still listening to voice input and will still react on “Hey Siri”
  • Deactivate computer sound

Please be aware that the keyboard input on the remote side cannot be blocked while showing system password fields due to restrictions on macOS itself.

 

How to activate the standard Black Screen

Spontaneously - During a remote control session

To activate the Black Screen during a remote control session on the remote device, please click on the Actions 1 tab in the Remote Control toolbar and choose Show Black Screen 2

WindowsWindows

macOSmacOS

LinuxLinux

Via the TeamViewer options of the remote computer (permanently)

You can set up the TeamViewer Black Screen as default in every connection to a specific device (e.g your computer at work). To do so, you need to set it up in the TeamViewer options of the remote computer you want to connect to

  1. Open TeamViewer on the remote computer
  2. Go to Extras → Options
  3. Access the Advanced tab, and scroll down to Advanced setting for connections to this computer
  4. First, tick the setting Disable local input and then tick Enable local blackscreen 

Or follow the instructions of this animation:

Blackscreen default remote computer.gif

Note: Every time you will connect to this specific computer, the TeamViewer black screen will be automatically enabled and remote input will be deactivated.



Via the Computers & Contacts list (permanently)

  1. In the Computers & Contacts list, select the device, click on the grey gear and then on Properties

    Black screen_CC.png

     

  2. In the Properties menu, click on Advanced

    Properties.png

  3. In the Remote input option of the Actions Settings, select Disable remote input and show black screen

    Window.png

     

  4. Save by clicking OK

Or follow the instructions shown in this animation:

Blackscreen default remote computer_via C&C.gif

Note: Every time you will connect to this specific computer, the TeamViewer black screen will be automatically enabled and remote input will be deactivated. This last procedure also works analogically when connecting to a contact.

 

How to activate the customized Black Screen

You can customize this feature by inserting your own image when activating the Black Screen. To do so, please follow these instructions:


On the remote computer

  1. Make sure the option Start with system option is enabled and close TeamViewer
  2. Open the Terminal and add the following setting:
    sudo defaults write /Library/Preferences/com.teamviewer.teamviewer.preferences.plist CustomBlackScreen -string "/path/to/custom.png"
    Please make sure that the image is located in the path you have indicated.


On the local computer

  1. Open TeamViewer.
  2. Activate the TeamViewer Black Screen. Your custom image will be displayed on the remote computer.

Note: The customized Black Screen feature is currently only available for macOS.
The supported image formats are: BMP, GIF, JPEG, PNG


Only relevant for Windows 7 and below

For Windows 7 and below, to be able to turn the remote screen blackthe TeamViewer monitor driver needs to be installed on the remote device. If the driver is already installed, the remote screen will turn black immediately.

If it is not installed, you will be prompted to install it when using the feature for the first time. A pop up will appear. Please click on Continue 3to install the driver.

Show black screen.png
You can also install the TeamViewer monitor driver via the TeamViewer settings.
Please open the setting by clicking on Extras --> Options --> Advanced --> Show advanced options --> Advanced network settings --> Install monitor driver --> click Install... 

monitor driver.png

Note: Not all monitors, video cards, motherboards, or BIOS support the TeamViewer monitor driver solution, which is required to use the black screen. The TeamViewer monitor driver solution is dependent on the implementation of hardware vendors and in case of incompatibility, you may not be able to use this feature with some host computers.

 

Ctrl + Alt + Del / Cmd + Option + Esc

Users still have the option to press the key combination Ctrl + Alt + Del (Windows) or Cmd + Option + Esc (macOS) on the remote computer.

Ctrl + Alt + Del (for Windows)Ctrl + Alt + Del (for Windows)                                           Cmd + Option + Esc (for macOS)Cmd + Option + Esc (for macOS)

This will:

  • remove the black screen on the remote computer
  • lock the remote user's session
  • enable remote input

Therefore, the user working remotely can be 100% sure that no one can see what he is doing during his remote control session. As soon as the key combination is used on the remote computer, the following pop-up will appear on both sides of the connection:

Black screen not active.png

Note: Locking the user's Windows session with the Ctrl + Alt + Del combination is only working on devices running Windows 8 and 10.

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Last update:
October
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