Problem
You connect to a computer in another room or a remote workplace using TeamViewer. But, the folks sitting around that computer get distracted by all the desktop operations you are doing. Or maybe you do not want to attract their attention. What do you do? Ideally you want to power off the display or blank it, but this is not possible to do without physical access to the computer.
Solution
TeamViewer has a neat feature called Black Screen that can be used to achieve something like this.
Teamviewer Black Screen Macbook
The Computer and Contacts window is shown on the right of the main TeamViewer window and it lists the remote computers you have added entries for. Right-click on the remote computer name and choose Properties. In the dialog, click on Advanced and in the Remote Input dropdown choose Disable remote input and show black screen.
Now connect to this remote computer. You can check whether a black screen is being displayed on the display of the remote computer by choosing Actions -> Show Black Screen in the TeamViewer toolbar. Sometimes this entry is not enabled even if you had enabled the black screen in its properties. If so, you can explicitly enable black screen for this remote session by choosing Actions -> Show Black Screen option.
What is a Black screen feature on TeamViewer? Whenever you are connected to your computer and are having an active session on TeamViewer, you for sure do not want for others to see what you are doing on that device, or what kind of files you are transferring. I know a black screen can happen if the Unattended Mac does not have a monitor connected to it and I think I remember experiencing it once on my Mac while switching users, but that is all. If you could follow the directions below and provide log files from a few of your affected Macs, I will create a case for you and escalate it for review. Press and hold the power button for about 10 seconds. Press and release the power button, then immediately press and hold Command (⌘)-R until you see an Apple logo or other image. If you still see a blank screen after about 20 seconds, contact Apple Support. Use Disk Utility to repair your startup disk.
Teamviewer Black Screen Fix Mac
Tried with: TeamViewer 7.0.12313