[Pkg-xfce-devel] Bug#665710: Bug#665710: Double configuration file /etc/lightdm/lightdm.conf

[Yves-Alexis Perez]

On dim., 2012-03-25 at 13:06 +0200, Bernhard wrote:
> Package: lightdm
> Version: 1.0.10-1
> Severity: normal
> 
> Hello,
> i have a fully automated installation with preseed files.
> Here, the corresponding content of my preseed file:
> 
> > d-i pkgsel/include string \
> > ...
> > lightdm lightdm-gtk-greeter \
> > ...
> 
> During installation of my Debian system, there is the message of the
> already installed file /etc/lightdm/lightdm.conf
> I have the choice:
> - Installation of this file with the version of the package maintainer
> - Keep the already installed version
> - See the difference of the two versions
> To see this message, i have to switch to the console with Alt+F4.
> I can't continue the installation.
> If i want to overwrite the currently installed version, nothing happens
> at the console.
> 
> If i have a look at the console, there is lightdm-gtk-greeter installed
> first.
> After installation of lightdm-gtk-greeter, there is the package lightdm
> installed.
> 
> For more informations, i have opened a new shell with Alt+F2.
> The content of the currently installed file /etc/lightdm/lightdm.conf
> from lightdm-gtk-greeter:
> 
> > [SeatDefaults]
> > greeter-sessions=lightdm-gtk-greeter
> 
> If you need more informations, please let me know.
> 

Hmhm, that's a tricky one, I think. That's because when you install
multiple greeters (gtk or Qt), you need to chose which one you want (so
you get the question using debconf). When you install only one, then
this one is selected. After that, the option is remembered in the
lightdm config file using lightdm-set-defaults.

In your case, it seems that lightdm and lightdm-gtk-greeter are not
installed at the same time at all (not in the same dpkg batch, I guess)
and so lightdm-gtk-greeter gets installed before lightdm is even
unpacked. But what puzzles me is that, if it's really the case, then
lightdm-set-defaults shouldn't be there either.

When that happens, could you run dpkg -l |grep lightdm and tell us the
result?

Regards,
-- 
Yves-Alexis
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