LightDM has two Xubuntu Session options after upgrade to xubuntu-default-settings on 2011-08-01

Thanks for your bug report. It's probably xubuntu.desktop and it's symlink default.desktop (lightdm is supposed to handle that correctly...). Could you provide the lightdm logs (somewhere in /var/log/lightdm I think) for each of the two session?

logs from first Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02

logs from first Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02

logs from first Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02

logs from second Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02. This session does use the greybird theme.

logs from second Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02. This session does use the greybird theme.

logs from second Xubuntu Session when live session is started using xubuntu oneiric-desktop-i386.iso dated 2011-08-02. This session does use the greybird theme.

Thank you for reporting this issue. I have attached logs from both sessions when booting the Oneiric i386 live session.

Thanks.

First session:
> [+207.64s] DEBUG: Launching process 2979: DISPLAY=:0 HOME=/home/ubuntu XDG_SESSION_COOKIE=b9aed8166d79d5930576ff4d0226ad3e-1312294437.696917-1933059891 GDMSESSION=default RUNNING_UNDER_GDM=yes LANG=en_US.UTF-8 USERNAME=ubuntu DESKTOP_SESSION=default USER=ubuntu SHELL=/bin/bash PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games /usr/sbin/lightdm-session 'startxfce4'

Second session:
> [+885.81s] DEBUG: Launching process 3417: DISPLAY=:0 HOME=/home/ubuntu XDG_SESSION_COOKIE=b9aed8166d79d5930576ff4d0226ad3e-1312295115.864867-1990294184 GDMSESSION=xubuntu RUNNING_UNDER_GDM=yes LANG=en_US.UTF-8 USERNAME=ubuntu DESKTOP_SESSION=xubuntu USER=ubuntu SHELL=/bin/bash PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games /usr/sbin/lightdm-session 'startxfce4'

So lightdm is doing something wrong imho: it's not "dereferencing" the default.desktop symlink to the real xubuntu.desktop, instead it's displaying two sessions as if they were distinct. Moreover, as it uses "default.desktop" as the key for the first session, all our xdg scripts are gonna break (because DESKTOP_SESSION=default instead of DESKTOP_SESSION=xubuntu will fill XDG_{CONFIG,DATA}_DIRS with incorrect paths).

(of course, I explicitly warned about this wrong behavior in another bug report when this feature was presented...)

is that still an issue? Robert suggested it should be fixed in the current version I think (not sure though)

This is still an issue, in a fresh install using the Xubuntu oneiric-alternate-amd64.iso dated 2011-08-10. I am attaching a screenshot showing the two Xubuntu sessions clearly. apt-cache policy gives lightdm 0.9.3-0ubuntu1.

This bug is fixed when using the images dated 2011-08-14 for Xubuntu.

This is fixed with lightdm 0.9.3-0ubuntu3 when installing using the Xubuntu images dated 2011-08-14.