I have a Mac which I connect to using Screen Sharing to log in and start a video playing. Since upgrading to El Capitan, when I quit the screen sharing client, the screen on the remote machine turns off. How do I stop this from happening, while still having the screen turn off normally after a few minutes of inactivity?
MacOS – How to stop display from turning off when I disconnect a Screen Sharing client
macosscreen-sharing
Related Solutions
ARD into your "work account" and then do the following on the remote computer to open a Screen Sharing window to your "personal account" on the same remote computer.
Create an SSH tunnel. It works for me using 10.9.
Enable Remote Login (SSH) in System Preferences > Sharing, and in Terminal run:
ssh -NL 5901:localhost:5900 localhost
Finally, use Screen Sharing to connect to localhost:5901 (instead of the default port 5900). Instead of port 5901 you can use a much higher port that isn't in use by anything else.
The Screen Sharing application is located here: /System/Library/CoreServices/Screen Sharing.app
Does it do it when the screen sleeps, or when the computer sleeps?
If only when the computer does, then set System Prefs > Energy Saver - Computer Sleep to never & Display Sleep to whatever you like.
You can then test using System Prefs > Desktop & Screensaver > Hot Corners & assign one corner to put the display to sleep.
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Best Answer
Run this command in the terminal to fix the external screen going blank on VNC disconnect. Works with Sierra OS.
More context from jabenninghoff on GitHub: