Re: [gdm-list] multiseat

[Brian Cameron <brian cameron oracle com>]

MultiSeat is not supported by GDM 2.21 or later, unless GDM is built
with the patch in this bug:

  https://bugzilla.gnome.org/show_bug.cgi?id=536355

And if ConsoleKit is built with the patch in this bug:

  https://bugs.freedesktop.org/show_bug.cgi?id=19333

I am not sure if Ubuntu does this already or not.  If they do, you
configure this via /etc/ConsoleKit interfaces and not via the
GDM configuration file anymore.  If your system has an
/etc/ConsoleKit/seats.d directory, then this feature should work
on your system.

Here are some examples which show how you can configure it via the new
interfaces:

     Example 1: To start the ConsoleKit daemon

     example% console-kit-daemon

     Example 2: To configure ConsoleKit to not start a seat

     To disable a seat, the administrator can set Hidden=true  in
     the  .seat file. Edit the 00-primary.seat file as follows to
     disable the default primary seat which normally runs on  the
     system console.

     For example, disabling the primary seat on  the  console  is
     useful  if  the  administrator wishes to run GDM in headless
     mode. This can be useful if the administrator wants  GDM  to
     accept  XDMCP  remote displays but the server does not actu-
     ally have a console.

     [Seat Entry]
     Version=1.0
     Name=Primary seat
     ID=StaticSeat1
     Description=start one static local display at :0
     Hidden=true
     Devices=
     Sessions=Local;

     Example 3: To configure ConsoleKit to  start  multiple  ses-
     sions on a single seat

     To start two local displays: DISPLAY ":0" on vt7 and DISPLAY
     ":1" on "vt8", edit the 00-primary.seat file as follows:

     [Seat Entry]
     Version=1.0
     Name=Primary seat
     Description=start static displays :0 on vt7 and :1 on vt8
     Hidden=false
     Devices=
     Sessions=Local;Local2;

     Then,      in      addition      to       the       original
     /etc/ConsoleKit/sessions.d/Local.session  file, add the fol-
     lowing /etc/ConsoleKit/sessions.d/Local2.session file:

     [Session Entry]
     Name=Local
     Type=LoginWindow
     Description=Local Login Screen
     DisplayTemplate=Local

     [Local]
     display=:1
     vt=vt8

     Example 4: To configure ConsoleKit to start multiple seat

     To start two seats: a local session on  DISPLAY  ":0"  using
     "vt7" and another seat using a VNC session on DISPLAY ":64",
     add a file /etc/ConsoleKit/seats.d/01-vnc.seat as follows:

     [Seat Entry]
     Version=1.0
     Name=VNC seat
     Description=start one VNC display on :64
     Hidden=false
     Devices=
     Sessions=LocalVNC;

     Add the /etc/ConsoleKit/sessions.d/LocalVNC.session file  as
     follows:

     [Session Entry]
     Name=LocalVNC
     Type=LoginWindow
     Description=Connect to local VNC server running on same machine
     DisplayTemplate=LocalVNC

     [LocalVNC]
     display=:64

     Finally, add the /etc/ConsoleKit/displays.d/LocalVNC.display
     file as follows:

     [Display]
     Type=X11

     [X11]
     Exec=/usr/X11/bin/Xvnc $display -auth $auth -query localhost

On Solaris, we update the console-kit-daemon manpage with these
examples to help people figure out how to do this.

Brian


On 03/16/11 09:57 AM, Scott Serr wrote:
> I'm doing some preliminary testing of Ubuntu 11.04 (Alpha3+Updates) to replace my aging Ubuntu 8.04 Multiseat setup.  Multiseat was do-able in gdm 2.20.5, but I would probably call it a hack.
>
> Is the current state of gdm 2.32.0 that it won't support multiseat?  Or is it just that it's not some how a menu driven configuration option?
>
> I've read some posts for 2.32 that there are patches for multiseat.
>
> With or without the patches, where would I find configuration information?  I'm familiar with gdm.conf hacks to add:
>
> [servers]
> 0=Seat0
> 1=Seat1
>
> etc...
>
> But things are very different now.
>
> Thanks for any help.
> -Scott
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