Multiple pointer / multi-seat support

[rektide]

Back on X, there was multi-pointer support support, MPX, that allowed multiple people pointing devices & their associate other input devices (multi seat) to work on a desktop. I could share a large monitor with a friend or have a second screen for them.
https://en.wikipedia.org/wiki/Multi-Pointer_X

This sounds super daunting to add and it's not common to how folks users computers today, but I am opening this ticket to at least raise the possibility. Many thanks for the excellent Wayland server.

[YaLTeR]

We're not doing multiseat because it's not practical. No client handles it and it's a very niche use case in general if it is even useful at all

[rektide]

In MPX multi-seat was still useful even when the apps had no support: each cursor had it's own active window and all of the input for that cursor went to that window.

But I hear what you are saying: it is indeed a niche use case.

I will mention that SDL now supports multi-seat! For folks playing local co-op/split-screen video games, this would be a lovely feature to have.
https://www.phoronix.com/news/SDL-Merges-Wayland-Multi-Seat

[Jak2k]

There is some support in tldraw. Support for this feature is a chicken or the egg dilemma and it would definitely be very cool, especially for games or collaborative apps.