Bug#1040912: lightdm-gtk-greeter: greeter always uses Gnome (Standard) as default Xsession

[Yves-Alexis Perez <corsac@debian.org>]

On Wed, Jul 12, 2023 at 01:06:10PM +0200, Dieter Scheinkönig wrote:
> Dear Yves-Alexis,
> 
> thanks for the fast response.
> 
> I'm talking about the lightdm logon screen (as on the screenshot of
> https://de.wikipedia.org/wiki/LightDM#/media/Datei:Lightdm-screenshot.jpg)
> Next to the users you have the possibility to select your session. This is
> always defaulted to Gnome (Standard) since I upgraded to Debian 12.

Hi, that screenshot is not lightdm-gtk-greeter
> 
> I attached the last 150 lines from lightdm.log.
> 
And the log confirm you're using arctica-greeter, so it's definitely
unrelated to lightdm-gtk-greeter. But in any case, as I said before, you
can select the session in the greeter but in the end it's handled by
Lightdm itself.

Looking at the log you provided, we can see:
[+264.18s] DEBUG: Session pid=5587: Running command /etc/X11/Xsession
default   
[+264.18s] DEBUG: Creating shared data directory
/var/lib/lightdm/data/scheini72
[+264.18s] DEBUG: Session pid=5587: Logging to .xsession-errors                 

So you're definitely using /etc/X11/Xsession with the 'default'
parameter. You should be able to select a specific session if the
desktop environment you use has it (for example Xfce).

In any case, could you provide your .xsession-errors as well as your
.xsession or .Xsession just in case?

It looks to me like an configuration issue rather than a bug though.

Regards,
-- 
Yves-Alexis Perez