tldr/pages/linux/dm-tool.md

dm-tool

A tool to communicate with the display manager. More information: https://manned.org/dm-tool.

• Show the greeter while keeping current desktop session open and waiting to be restored upon authentication by logged in user:

dm-tool switch-to-greeter

• Lock the current session:

dm-tool lock

• Switch to a specific user, showing an authentication prompt if required:

dm-tool switch-to-user {{username}} {{session}}

• Add a dynamic seat from within a running LightDM session:

dm-tool add-seat {{xlocal}} {{name}}={{value}}