Review Request 112294: Implement multi-seat support in KDM

Stefan Brüns stefan.bruens at
Mon May 26 01:07:00 BST 2014

This is an automatically generated e-mail. To reply, visit:

(Updated May 26, 2014, 12:06 a.m.)

Review request for kde-workspace and Oswald Buddenhagen.


Updated patch. Collapsed patch, because reviewboard does not accept git format-pacht series ...

Repository: kde-workspace


This patch implements dynamic multiseat in KDM. It follows the description in:

In case systemd is no found at compile time, nothing changes. If logind is not running, nothing changes. If no additional seats have been configured (some Plugable USB-GPUs are automatically added as additional seats), nothing changes.

In case there are additional seats beyond seat0, a reserved display is promoted to a local static one (and demoted if the seat is removed) and a new X-Server/greeter is spawned.

The code has been tested extensively, with a combination of [Radeon dedicated GPU|Intel iGPU], [Intel iGPU|Displaylink USB GPU] and others. For history of this patch, see and

Diffs (updated)

  cmake/modules/CMakeLists.txt 117b3a5 
  kdm/ConfigureChecks.cmake b61fd90 
  kdm/backend/CMakeLists.txt 25f383f 
  kdm/backend/client.c a2d06c2 
  kdm/backend/dm.h b2f8c61 
  kdm/backend/dm.c 77a2ef7 
  kdm/backend/dpylist.c b650c2f 
  kdm/backend/resource.c 38a8c70 
  kdm/backend/server.c d8dd6f3 
  kdm/backend/session.c 0e7901c 
  kdm/config-kdm.h.cmake 3e8912d 
  kdm/kfrontend/kdm_config.c 368c8d1 



Single seat system, several multiseat systems


Stefan Brüns

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the kde-core-devel mailing list