The user is no more guest as said by Micha B. So to unlock the guest session go to a terminal, use the command "users" to get the name of guest in the shape guest-######. Then "sudo passwd guest-######" to affect a password.
-- 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/1022858 Title: Guest session asks for password when switch back to it Status in “lightdm” package in Ubuntu: Confirmed Bug description: When I switch back to an already open guest session from my user account, I find that the guest session is locked and it asks for the Guest password (which obviously there isn't because it's a guest session!). ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: gnome-session-bin 3.2.1-0ubuntu8 ProcVersionSignature: Ubuntu 3.2.0-26.41-generic 3.2.19 Uname: Linux 3.2.0-26-generic x86_64 ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 Date: Tue Jul 10 09:54:55 2012 ExecutablePath: /usr/bin/gnome-session InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: gnome-session UpgradeStatus: No upgrade log present (probably fresh install) XsessionErrors: (compiz:1719): GConf-CRITICAL **: gconf_client_add_dir: assertion `gconf_valid_key (dirname, NULL)' failed --- ApportVersion: 2.0.1-0ubuntu17.1 Architecture: amd64 DistroRelease: Ubuntu 12.04 InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) MarkForUpload: True Package: lightdm 1.2.1-0ubuntu1.1 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35 Tags: precise running-unity Uname: Linux 3.2.0-36-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1022858/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
