tldr/pages/linux/dm-tool.md

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# 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}}`