Public bug reported: Symptoms: - I cannot login to the graphical session neither using lightdm not lxdm - After typing password and hitting enter the login screen disappears and reappears after 4-5 seconds - Login as guest does not work as well - Worked before, I am not aware of having done anything special - Login on console works - Tried several hints, like those from http://askubuntu.com/questions/223501/ubuntu-gets-stuck-in-a-login-loop, http://askubuntu.com/questions/590561/ubuntu-14-04-login-loop-problem - not a permission problem with .Xauthority, .ICEauthority, /tmp - not a graphics driver issue - sudo pam-auth-update --force did not help
According to lightdm.log, authentication succeeds and it stops greeter and starts gnome-session, which seems to fail with: CRITICAL: session_get_login1_session_id: assertion 'session != NULL' failed in ~/.xsession-errors I get: openConnection: connect: Datei oder Verzeichnis nicht gefunden cannot connect to brltty at :0 upstart: gnome-session (GNOME)-main-Prozess (2158) wurde mit dem Status 1 beendet upstart: logrotate-main-Prozess (2023) wurde von TERM-Signal beendet upstart: bamfdaemon-main-Prozess (2080) wurde von TERM-Signal beendet upstart: Vom benachrichtigten D-Bus-Bus getrennt ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Attachment added: "lightdm.log" https://bugs.launchpad.net/bugs/1636718/+attachment/4767384/+files/lightdm.log -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1636718 Title: Grapical login fails (independent from Display Manager) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1636718/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp