Here is a screenshot of what happens:( I'm forced to switch to GDM now. ** Attachment added: "screenshot" https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1156342/+attachment/3580259/+files/LightDM01.jpg
** Description changed: The new session selection UI of LightDM requires user to select their desired session -> click OK(?) to make effect, however if a user installs to many session/desktop environment, the list will become too long and it extends to outside of the screen - In this case there is no way choose another session by mouse or keyboard. + In this case there is no way choosing another session by mouse or keyboard. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: lightdm 1.4.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-25.25-lowlatency 3.5.7.4 Uname: Linux 3.5.0-25-lowlatency i686 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 Date: Mon Mar 18 05:09:45 2013 InstallationDate: Installed on 2013-03-08 (8 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2) MarkForUpload: True ProcEnviron: LANGUAGE=zh_TW:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=zh_TW.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) -- 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/1156342 Title: Unable to change session/desktop environment if installed too many of those. Status in “lightdm” package in Ubuntu: New Bug description: The new session selection UI of LightDM requires user to select their desired session -> click OK(?) to make effect, however if a user installs to many session/desktop environment, the list will become too long and it extends to outside of the screen In this case there is no way choosing another session by mouse or keyboard. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: lightdm 1.4.0-0ubuntu2 ProcVersionSignature: Ubuntu 3.5.0-25.25-lowlatency 3.5.7.4 Uname: Linux 3.5.0-25-lowlatency i686 NonfreeKernelModules: nvidia ApportVersion: 2.6.1-0ubuntu10 Architecture: i386 Date: Mon Mar 18 05:09:45 2013 InstallationDate: Installed on 2013-03-08 (8 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2) MarkForUpload: True ProcEnviron: LANGUAGE=zh_TW:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=zh_TW.UTF-8 SHELL=/bin/bash SourcePackage: lightdm UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1156342/+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

