Documentation unclear: Does Deskreen mirror an existing screen or generate a new second screen?

[rozsazoltan]

Note

Unfortunately, the author of the repository, pavlobu, has blocked me - I don't really understand why - so GitHub doesn't allow me to comment on the otherwise open-source repository.

I've gone over the Readme, and I don't have the answer to my question, so I thought I'd ask it in an issue.

My question is:

Does this create a second screen that is a copy of my screen (ie the browser on my tablet has a clone/copy/duplicate of my PC (linux) screen), or does this actually create a second, different screen (in the virtual sense of having two separate screens) that can show things (windows etc) that are not present on my first screen ?

Asked in a different way, will I be able to move my mouse from one screen to the other, or will both screens show the exact same mouse doing the exact same thing?

Which of the two is it?

Maybe a photo of a two-display setup in the Readme would help?

Thanks a lot for the clarification.

Source: https://github.com/pavlobu/deskreen/issues/272

[rozsazoltan]

The software can only capture and transmit an already existing image as a copy. To create a "second ghost" screen, you’ll need separate hardware. You don’t necessarily have to plug in a physical monitor, but you must connect a Virtual Display Adapter to your GPU to generate a virtual second, third, etc., monitor.

It’s important to note that this adds extra load to your GPU, so it’s not infinitely scalable - only up to the number of adapters your GPU supports.

If you purchase a Virtual Display Adapter and set it up as a second monitor, then yes, Deskreen will be able to share it with a separate device, such as your tablet, TV, etc.