Thank you for your bug report. Can you include your /var/log/lightdm/lightdm.log and ~/.xsession-errors and .cache/upstart /gnome-session-Unity.log logs?
** Changed in: lightdm (Ubuntu) Importance: Undecided => High ** Changed in: lightdm (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1448446 Title: Cannot login into Ubuntu 15.04 after upgrade Status in lightdm package in Ubuntu: Incomplete Bug description: After I upgraded my Ubuntu 14.10 to 15.04, I wanted to login into the GUI system. I have 4 users on my system. 3 of them is unable to login, 1 is able. The message is "unsuccessful login". Terminal logins work for all users. I use lightdm. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1448446/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp