starting gdm, but not X

[Goran Hasse]

Basicaly a display manager (gdm, xdm etc) can act in three
different way.

1: Just start a local X-server and give this server a login session
2: Give a remote X-server a login session
3: Give a remote X-server a list of login servers
    XDCMP Chooser Options

Look for the gdm.conf file. It is not trivial but
it is nice to have ALL you machines available when you
want to login.

GH


2010/12/20 Ekkard Gerlach <egerlach at aiai.de>:
> Hi,
>
> how can I explain gdm to start without starting X?
>
> I'm using 10.04, xubuntu / ubuntu.
>
> Why? - xubuntu is running as vserver and X can't be started,
> gdm seems to crash after about 20 sec trying to start X.
> But ubuntu in a vserver environment can never start X ...
>
>
> root at xubuntu104:/etc# service gdm start
> gdm start/running, process 10097
>
> root at xubuntu104:/etc# ps ax | grep gdm
> 10211 ?        Ss     0:00 /bin/bash /etc/gdm/failsafeXServer
> 10226 ?        S      0:00 xinit /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe -- /usr/bin/X -br -once -config
> /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log
> 10232 pts/3    S+     0:00 grep --color=auto gdm
>
> Is gdm running?
> After about 20 seconds the gdm disappears automatically from process list:
>
> root at xubuntu104:/etc# ps ax | grep gdm
> 10236 pts/3    S+     0:00 grep --color=auto gdm
>
> root at xubuntu104:/# cat /etc/X11/xorg.conf.failsafe
> Section "Device"
>        Identifier      "Configured Video Device"
>        Driver          "vesa"
> EndSection
> Section "Monitor"
>        Identifier      "Configured Monitor"
> EndSection
> Section "Screen"
>        Identifier      "Default Screen"
>        Monitor         "Configured Monitor"
>        Device          "Configured Video Device"
> EndSection
>
>
> /etc/gdm/custom.conf:
> =====================
> [daemon]
> DefaultSession=xubuntu
>
> [xdmcp]
> Enable=true
> DisplaysPerHost=5
> Port=177
>
> [security]
> DisallowTCP=false
> [debug]
> Enable=true
>
> [greeter]
> IncludeAll=true
>
> thx
> Ekkard
>
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-- 
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Göran Hasse
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