Hi Branko,
The log snippet you've given shows two things:
1. ConsoleKit is giving an error when activating the session - but this is
probably not a problem since it's indicating the session is already active.
Perhaps you have both ConsoleKit and logind installed?
2. The greeter you are running has actually crashed with a segmentation
fault. You might find something in the greeter log (probably
/var/log/lightdm/x-0-greeter.log but the lightdm.log will indicate where it
logged to).
In short - find out why the greeter is crashing and that will probably
indicate what the problem is.
--Robert
On Tue, 22 Sep 2015 at 04:10 Branko <brankob at s5tehnika.net> wrote:
> Hi all.
>
> I have a Gentoo system ( with systemd) on my Thinkpad, where I used to
> start Enlightenment .
>
> Efter deinstalling it and installing Xfce4 I noticed that lightdm
> refuses to start.
> I thought I was some session configuration file that I forgot to tweak,
> but after rechecking everything, I am still at a loss.
>
> lightdm fails while manual start through "startxfce" works.
>
> I checked te log file and it seems that it fails because it refuses to
> start a new session while inside another session.
>
>
> When I login, logind seems to create new session and if I start lightdm
> within it, it fails. But it fails the same way even when started trough
> systemd's service script ( manually with "systemctl isolate
> graphical.target" - I haven't tried as using it for default boot
target
> as it stuck in endless restart cycle, which requires reboot and messing
> around with bash to set default target to something that can be booted,
> like multi-user.target).
>
> Here is a snippet from log:
>
> [+2.39s] DEBUG: Activating ConsoleKit session
> 21289a790e5a8c78988b60b354fb8020-1442847127.809317-280785761
> [+2.39s] WARNING: Error activating ConsoleKit session:
> GDBus.Error:org.freedesktop.DBus.GLib.UnmappedError.CkVtMonitorError.Code0:
> Session is already active
> [+2.65s] DEBUG: Session pid=13033: Greeter connected version=1.10.5
> [+3.45s] DEBUG: Session pid=13033: Greeter closed communication channel
> [+3.45s] DEBUG: Session pid=13033: Exited with return value 11
> [+3.45s] DEBUG: Seat: Session stopped
>
>
>
>
>
> _______________________________________________
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> LightDM at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/lightdm
>
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