Multi-cursor support in Wayland explored for collaborative computing

Exploring Multi-Cursor Wayland

A recent three-week investigation explored the current state of multi-mouse cursor support within Linux and Wayland desktop environments. The findings indicate that the concept of multiple users controlling a single desktop with individual input devices is more developed than anticipated. This setup, often referred to as "logical seats," allows each user to have their own mouse and keyboard, with distinct cursors appearing on the same screen.

Tools and Improvements Released

Alongside the analysis, several small tools and patched libraries have been released. These additions are designed to enhance or introduce "multi-seat" support, addressing some of the existing gaps in the ecosystem. While progress has been made, the overall infrastructure for this functionality remains incomplete, with many pieces still requiring further development.

Potential Use Cases

The ability to have multiple mouse cursors on a single desktop opens up several collaborative computing possibilities. These include facilitating pair programming, where one person can work on code while another browses documentation simultaneously. It also offers new avenues for gaming, allowing multiple players to interact with a single game instance using separate mice. The approach aims to simplify in-application collaboration without complex synchronization algorithms.

Understanding "Logical Seats"

The term "seat" in this context refers to a grouping of input devices intended for use by a single person. The investigation focuses on "logical seats," where multiple individuals share one computer, each with their own mouse and keyboard, but all interacting with the same desktop environment. This setup enables shared control and interaction within applications, allowing users to hand over windows or collaborate directly.