What do you mean with current zesty? I just installed all updates (I don't use proposed), but I have not restarted pc and/or lightdm...
If /usr/lib/lightdm/lightdm-greeter-session has this line: eval `dbus-launch --sh-syntax` Then my second seat / session works - I can logout & login without problems. When I restore this line: [ -n "$DBUS_SESSION_BUS_ADDRESS" ] || eval `dbus-launch --sh-syntax` Problem is back. Every time I try to login unity-settings-daemon started from lightdm is still running... alberts@ga-b75m-d3h:~$ loginctl SESSION UID USER SEAT TTY c4 1001 flashback seat1 2 120 debian-spamd /dev/pts/8 c42 1001 flashback seat1 c3 1000 alberts seat0 c43 111 lightdm seat1 c44 1001 flashback seat1 6 sessions listed. alberts@ga-b75m-d3h:~$ loginctl session-status c43 c43 - lightdm (111) Since: Tue 2016-11-08 18:16:59 EET; 2min 3s ago Leader: 20942 Seat: seat1 Display: :0 Service: lightdm-greeter; type x11; class greeter State: closing Unit: session-c43.scope ├─20972 /usr/lib/at-spi2-core/at-spi2-registryd --use-gnome-session ├─20983 nm-applet └─20985 /usr/lib/unity-settings-daemon/unity-settings-daemon nov 08 18:16:59 ga-b75m-d3h systemd[1]: Started Session c43 of user lightdm. nov 08 18:16:59 ga-b75m-d3h org.a11y.atspi.Registry[20970]: SpiRegistry daemon is running with well-known name - org.a11y.atsp nov 08 18:17:03 ga-b75m-d3h lightdm[20942]: pam_unix(lightdm-greeter:session): session closed for user lightdm -- 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/1637758 Title: lightdm greeter session not properly shut down at login Status in lightdm package in Ubuntu: Incomplete Bug description: I am using lightdm with 2 seats. After 2409 revision randomly one of two seats does not work correctly. xsettings plugin from unity-settings-daemon or gnome-settings-deamon fails to start because there is already _XSESSION_S* manager running. After revision 2409 in system monitor I see that there is still running unity-settings-daemon started by lightdm. Reverting this revision fixes my problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1637758/+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