nach Stundenlanger erfolgloser Fehlersuche im Internet habe ich mich nun hier registriert und bitte um eure Hilfe.
Bei einer bekannten von mir, deren Rechner ich Pflege gibt es seit heute ein Problem mit der Anmeldung am Desktop.
Sie kann sich nicht mehr einloggen.
Der Benutzer und das Passwort werden korrekt eingegeben.
Es erscheint jedoch kein Desktop sondern wieder der Loginscreen.
Im Syslog fand sich die Meldung
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lightdm[1749]: Error getting user list from org.freedesktop.Accounts: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.Accounts was not provided by any .service files
systemctl status lightdm
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● lightdm.service - Light Display Manager
Loaded: loaded (/lib/systemd/system/lightdm.service; enabled; vendor preset: enabled)
Active: active (running) since Sat 2020-03-21 17:03:05 CET; 3min 58s ago
Docs: man:lightdm(1)
Main PID: 733 (lightdm)
Tasks: 14 (limit: 18985)
Memory: 118.9M
CGroup: /system.slice/lightdm.service
├─ 733 /usr/sbin/lightdm
├─1763 /usr/lib/xorg/Xorg :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
└─1792 lightdm --session-child 12 19
Mär 21 17:06:45 PCMLI lightdm[1625]: gkr-pam: unlocked login keyring
Mär 21 17:06:45 PCMLI lightdm[1625]: pam_unix(lightdm:session): session closed for user monika
Mär 21 17:06:46 PCMLI lightdm[1694]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
Mär 21 17:06:56 PCMLI lightdm[1710]: pam_unix(lightdm:auth): Couldn't open /etc/securetty: No such file or directory
Mär 21 17:07:00 PCMLI lightdm[1710]: pam_unix(lightdm:auth): Couldn't open /etc/securetty: No such file or directory
Mär 21 17:07:00 PCMLI lightdm[1710]: gkr-pam: unable to locate daemon control file
Mär 21 17:07:00 PCMLI lightdm[1710]: pam_unix(lightdm:session): session opened for user monika by (uid=0)
Mär 21 17:07:00 PCMLI lightdm[1710]: gkr-pam: unlocked login keyring
Mär 21 17:07:01 PCMLI lightdm[1710]: pam_unix(lightdm:session): session closed for user monika
Mär 21 17:07:02 PCMLI lightdm[1778]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0)
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Xsession: X session started for monika at Sa Mär 21 17:07:00 CET 2020
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting XAUTHORITY=/home/monika/.Xauthority
localuser:monika being added to access control list
dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
dbus-update-activation-environment: setting USER=monika
dbus-update-activation-environment: setting LANGUAGE=de_AT:de
dbus-update-activation-environment: setting XDG_SESSION_TYPE=x11
dbus-update-activation-environment: setting HOME=/home/monika
dbus-update-activation-environment: setting DESKTOP_SESSION=lightdm-xsession
dbus-update-activation-environment: setting XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
dbus-update-activation-environment: setting GTK_MODULES=gail:atk-bridge
dbus-update-activation-environment: setting DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
dbus-update-activation-environment: setting LOGNAME=monika
dbus-update-activation-environment: setting XDG_SESSION_CLASS=user
dbus-update-activation-environment: setting PATH=/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
dbus-update-activation-environment: setting XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session1
dbus-update-activation-environment: setting XDG_RUNTIME_DIR=/run/user/1000
dbus-update-activation-environment: setting DISPLAY=:0
dbus-update-activation-environment: setting LANG=de_AT.UTF-8
dbus-update-activation-environment: setting XDG_SESSION_DESKTOP=lightdm-xsession
dbus-update-activation-environment: setting XAUTHORITY=/home/monika/.Xauthority
dbus-update-activation-environment: setting XDG_GREETER_DATA_DIR=/var/lib/lightdm/data/monika
dbus-update-activation-environment: setting SHELL=/bin/bash
dbus-update-activation-environment: setting GDMSESSION=lightdm-xsession
dbus-update-activation-environment: setting QT_ACCESSIBILITY=1
dbus-update-activation-environment: setting GPG_AGENT_INFO=/run/user/1000/gnupg/S.gpg-agent:0:1
dbus-update-activation-environment: setting PWD=/home/monika
dbus-update-activation-environment: setting XDG_DATA_DIRS=/usr/share/xfce4:/usr/local/share/:/usr/share/
/usr/bin/x-session-manager: X server already running on display :0
xfce4-session: GNOME compatibility is enabled and gnome-keyring-daemon is found on the system. Skipping gpg/ssh-agent startup.
(xfwm4:1762): Gtk-WARNING **: 17:07:01.299: cannot open display: :0.0
seat0-greeter.log
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** Message: 17:07:02.211: Starting lightdm-gtk-greeter 2.0.7 (Dec 31 2019, 11:59:29)
** Message: 17:07:02.211: [Configuration] Reading file: /usr/share/lightdm/lightdm-gtk-greeter.conf.d/01_debian.conf
** Message: 17:07:02.211: [Configuration] Reading file: /etc/lightdm/lightdm-gtk-greeter.conf
** (lightdm-gtk-greeter:1781): WARNING **: 17:07:02.258: [PIDs] Failed to execute command: /usr/lib/at-spi2-core/at-spi-bus-launcher
** (lightdm-gtk-greeter:1781): WARNING **: 17:07:02.259: [PIDs] Failed to execute command: upstart
(lightdm-gtk-greeter:1781): Gtk-WARNING **: 17:07:02.433: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node menubar owner GreeterMenuBar)
Ein zusätzliches Hindernis ist die aktuelle Situation, sodass ich nicht zur Ihr fahren kann und die Wartung über Remote durchführen muss.
Alles kein Thema, aber wenn etwas probiert werden soll, muss ich das immer erst mit ihr koordinieren. Nur zur Info.
Das VNC Display funktioniert übrigens einwandfrei (ohne Loginscreen).
Hat dazu vielleicht jemand eine Idee?
user cache löschen?
Vielen Dank!
mfg
Debian testing mit xfce