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[Eric Levy <contact@xxxxxxxxxxxxx>]

Public bug reported:

Previously lightdm.conf would allow configuration of multiple instances
of the the display manager across multiple instances of the X server,
using [Seat:<num] section headers.  These semantics could be used for
multiseat setup as well as for using different virtual terminals to
switch between X servers.

Newer versions of lightdm ignore [Seat:<num] sections.  Multiseat
configuration was changed to be more explicit, but no indication was
given of how simply to configure multiple display manager instances
bound to different X server instances.

Unless newer versions support undocumented features, it would appear
that the functionality of lightdm has regressed.

This regression appears when Ubuntu release is upgraded to 14.10 from
14.04 or earlier.  The regression in confirmed in lightdm
1.12.1-0ubuntu1.

** Affects: lightdm (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1406140

Title:
  lightdm 1.12 breaks config semantics for multiple X servers

Status in lightdm package in Ubuntu:
  New

Bug description:
  Previously lightdm.conf would allow configuration of multiple
  instances of the the display manager across multiple instances of the
  X server, using [Seat:<num] section headers.  These semantics could be
  used for multiseat setup as well as for using different virtual
  terminals to switch between X servers.

  Newer versions of lightdm ignore [Seat:<num] sections.  Multiseat
  configuration was changed to be more explicit, but no indication was
  given of how simply to configure multiple display manager instances
  bound to different X server instances.

  Unless newer versions support undocumented features, it would appear
  that the functionality of lightdm has regressed.

  This regression appears when Ubuntu release is upgraded to 14.10 from
  14.04 or earlier.  The regression in confirmed in lightdm
  1.12.1-0ubuntu1.

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