[gdm-list] Multi seat for GDM 2.3x / 3.yy

[Junior Polegato - Linux <linux juniorpolegato com br>]

Hi!

        I use Debian testing in company terminals with 2 or 3 seats. I 
use GDM2 because GDM3 doesn't have "[servers]" session like GDM2:

[servers]
0=Xbase
1=Xephyr1
2=Xephyr2

[server-Xbase]
name=Xbase
command=/usr/bin/X
handled=false
flexible=false
chooser=false
priority=0

[server-Xephyr1]
name=Xephyr1
command=/usr/local/bin/load_Xephyr -display :0.0 -xauthority 
/var/lib/gdm/:0.Xauth -fullscreen -keybd 
evdev,,device=/dev/input/by-path/pci-0000:00:02.0-usb-0:4:1.0-event-kbd,xkbrules=evdev,xkblayout=br,xkbmodel=abnt2 
-mouse 
evdev,,device=/dev/input/by-path/pci-0000:00:02.0-usb-0:2:1.0-event-mouse -dpi 
96
handled=true
flexible=false

[server-Xephyr2]
name=Xephyr2
command=/usr/local/bin/load_Xephyr -display :0.1 -xauthority 
/var/lib/gdm/:0.Xauth -fullscreen -keybd 
evdev,,device=/dev/input/by-path/pci-0000:00:02.0-usb-0:1:1.0-event-kbd,xkbrules=evdev,xkblayout=br,xkbmodel=abnt2 
-mouse 
evdev,,device=/dev/input/by-path/pci-0000:00:02.0-usb-0:3:1.0-event-mouse -dpi 
96
handled=true
flexible=false

        How can I do this in GDM3?

        Plus, I need to use old versions from Debian stable of Xorg 
(7.5+8 / 1.7.7-13) and GDM (2.20.11-4). If I update Xorg to Debian 
testing, version 7.6+9 / 1.11.1-1 and maintain GDM 2.20.11-4, when 
logged, the gnome-session starts and the Xephyr consumes 100% of 1 CPU, 
but if I open using "gdmflexiserver -n", the Xephyr it's ok.

        I note also that has GDM 3.0 in Debian unstable, on this, is it 
possible the GDM 2.20 configuration to multi seat?

        Thanks,

                    Junior Polegato