Thank you for your bug report, that's not really a bug and not specific to the guest session, the same would probably happen for new users, if you remove the default session you should probably tweak your config to point to another session, why would lightdm pick gnome-shell over gnome classic or KDE or XFCE?
** Changed in: lightdm (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/985724 Title: LightDM doesn't use GNOME Shell as guest session after uninstall of Unity Status in “lightdm” package in Ubuntu: New Bug description: LightDM doesn't automatically use GNOME Shell as guest session after uninstall of Unity. There is not even a graphical user interface for setting the default session. When a user removed Unity, but did not change any setting manually and tries to start a guest session, the user will see just a plain background image with no interface at all. Only Ctrl+Alt+Delete allows to logout. As a workaround you have to manually edit "/etc/lightdm/lightdm.conf" and change "user-session=ubuntu" to "user-session=gnome-shell". ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: lightdm 1.2.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 Date: Thu Apr 19 17:49:21 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111011) SourcePackage: lightdm UpgradeStatus: Upgraded to precise on 2012-04-17 (1 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/985724/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
