[xubuntu-users] Two copies of X running, why, and how do I fix it?

[Chris G]

I'm running xubuntu 9.04 after upgrading from xubuntu 8.10, the
upgrade didn't go entirely smoothly but most things now seem to be
sorted. 

However I appear to have two copies of X running:-

    root      4390     1  0 08:54 ?        00:00:00 xinit /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm -- /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log
    root      4392  4390  0 08:54 tty7     00:00:01 /usr/bin/X :0 -auth /var/lib/gdm/:0.Xauth -nolisten tcp vt7 -br -once -config /etc/X11/xorg.conf.failsafe -logfile /var/log/Xorg.failsafe.log
    root      4398  4390  0 08:54 ?        00:00:00 /bin/bash /etc/gdm/failsafeXinit /etc/X11/xorg.conf.failsafe with-gdm
    root      4445     1  0 08:54 ?        00:00:00 /usr/sbin/gdm --config=/etc/gdm/gdm-cdd.conf
    root      4488  4445  0 08:54 ?        00:00:00 /usr/sbin/gdm --config=/etc/gdm/gdm-cdd.conf
    root      4491  4488  0 08:55 tty9     00:00:41 /usr/bin/X :1 -br -audit 0 -auth /var/lib/gdm/:1.Xauth -nolisten tcp vt9

The X that actually works is the second one using display :1.0, that
one has retained all the settings etc. from my old 8.10 installation
and it's what I'm using now.

So who/what is starting up that /etc/gdm/failsafeXinit and how do I
tell it to go away?  It produces several pop-up warnings about
starting in low-graphics mode and such when I reboot, then I get the
second X starting which tells me that display :0 is in use and goes to
:1 instead - and works.

-- 
Chris Green