how to use another computer as a second monitor hdmi

Required Software: On the server install x11vnc and gtf, on the client install a vnc client.Definitions: The 'server' will be the computer which screen you want to extend, the 'client' will be the computer (or tablet, any device able to deploy a VNC client) that you want to use as a screen.Please be aware of the notes and considerations at the end of this answer.

I had a couple of issues with this code but I managed to get it working as shown below. To set a different display as the primary display, simply drag the menu bar to the screen you’d like to use.Similar to a couple of answers given, I was able to get it working using x11vnc by means of using my own code derived from the VNC Virtual Display Linker python code. Make sure that the box for Mirror Displays is not selected, and then arrange your displays by dragging them to your desired position.

Head to the Apple menu then click ‘System Preferences > Displays’ and click the Arrangement tab. Once you’ve picked the right cable for the job, plug it into your monitor and move on to the next step. To connect another display to your MacBook, check the ports on your device first to determine whether you’ll need an adaptor. Select it to expand your display across multiple screens, then tick which screen you’d like to make as your main display. From here, you can choose from a variety of options, but the ones that we’re focusing on is Extend these displays. Scroll down to Multiple displays and click the dropdown. You can also rearrange your displays to suit your preference, just make sure you click Apply once you’re done. If you’re unsure which screen is which, click Identify and a number will pop up to signify each display.

How to use another computer as a second monitor hdmi