*** This bug is a duplicate of bug 1901376 *** https://bugs.launchpad.net/bugs/1901376
** This bug has been marked a duplicate of bug 1901376 xdmcp stopped working with groovy gdm3 on raspi -- 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/1901450 Title: XDMCP does not work on Raspi Groovy while it works fine on Groovy Ubuntu Mate AMD64 Status in Light Display Manager: New Status in lightdm package in Ubuntu: New Bug description: The following configuration enables XDMCP of LightDM in Ubuntu Mate Groovy. But it fails on Groovy Raspberry Pi 64bit. [LightDM] start-default-seat=false lock-memory=false remote-sessions-directory=/usr/share/lightdm/sessions:/usr/share/xsessions:/usr/share/wayland-sessions [XDMCPServer] enabled=true #port=177 listen-address=127.0.0.1 journalctl -e shows the following: Oct 26 07:56:41 raspi-groovy systemd[1]: Started Session 1 of user root. Oct 26 07:57:10 raspi-groovy systemd[1]: /etc/systemd/system/Xtigervnc@.service:9: Special user nobody configured, this is not safe! Oct 26 07:57:10 raspi-groovy systemd[1]: Created slice system-Xtigervnc.slice. Oct 26 07:57:10 raspi-groovy systemd[1]: Starting XVNC Per-Connection Daemon (192.168.1.75:41812)... Oct 26 07:57:10 raspi-groovy systemd[1]: Started XVNC Per-Connection Daemon (192.168.1.75:41812). Oct 26 07:57:11 raspi-groovy lightdm[893]: PAM unable to dlopen(pam_kwallet.so): /lib/security/pam_kwallet.so: cannot open shared object file: No such file or directory Oct 26 07:57:11 raspi-groovy lightdm[893]: PAM adding faulty module: pam_kwallet.so Oct 26 07:57:11 raspi-groovy lightdm[893]: PAM unable to dlopen(pam_kwallet5.so): /lib/security/pam_kwallet5.so: cannot open shared object file: No such file or directory Oct 26 07:57:11 raspi-groovy lightdm[893]: PAM adding faulty module: pam_kwallet5.so Oct 26 07:57:11 raspi-groovy lightdm[893]: pam_unix(lightdm-greeter:session): session opened for user lightdm by (uid=0) Oct 26 07:57:11 raspi-groovy systemd[1]: Created slice User Slice of UID 108. Oct 26 07:57:11 raspi-groovy systemd[1]: Starting User Runtime Directory /run/user/108... Oct 26 07:57:11 raspi-groovy systemd-logind[530]: New session c1 of user lightdm. Oct 26 07:57:11 raspi-groovy systemd[1]: Finished User Runtime Directory /run/user/108. Oct 26 07:57:11 raspi-groovy systemd[1]: Starting User Manager for UID 108... Oct 26 07:57:11 raspi-groovy systemd[897]: pam_unix(systemd-user:session): session opened for user lightdm by (uid=0) Oct 26 07:57:12 raspi-groovy systemd[902]: gnome-systemd-autostart-condition not found: No such file or directory Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.PrintNotifications-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-gnome\x2dinitial\x2dsetup\x2dcopy\x2dworker-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.MediaKeys-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Smartcard-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-gnome\x2dkeyring\x2dsecrets-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-at\x2dspi\x2ddbus\x2dbus-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Housekeeping-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: gnome-systemd-autostart-condition not found: No such file or directory Oct 26 07:57:12 raspi-groovy systemd[902]: gnome-systemd-autostart-condition not found: No such file or directory Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-gnome\x2dkeyring\x2dssh-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Color-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Wwan-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-xdg\x2duser\x2ddirs-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-pulseaudio-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Rfkill-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-gnome\x2dkeyring\x2dpkcs11-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.A11ySettings-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.XSettings-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.ScreensaverProxy-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Datetime-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Sound-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Keyboard-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.UsbProtection-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-spice\x2dvdagent-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Sharing-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Wacom-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[902]: Not generating service for XDG autostart app-org.gnome.SettingsDaemon.Power-autostart.service, startup phases are not supported. Oct 26 07:57:12 raspi-groovy systemd[897]: Queued start job for default target Main User Target. Oct 26 07:57:12 raspi-groovy systemd[897]: Started Pending report trigger for Ubuntu Report. Oct 26 07:57:12 raspi-groovy systemd[897]: Reached target Paths. Oct 26 07:57:12 raspi-groovy systemd[897]: Reached target Timers. Oct 26 07:57:12 raspi-groovy systemd[897]: Starting D-Bus User Message Bus Socket. Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on GnuPG network certificate management daemon. Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers). Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on GnuPG cryptographic agent and passphrase cache (restricted). Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on GnuPG cryptographic agent (ssh-agent emulation). Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on GnuPG cryptographic agent and passphrase cache. Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on debconf communication socket. Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on Sound System. Oct 26 07:57:12 raspi-groovy systemd[897]: Listening on D-Bus User Message Bus Socket. Oct 26 07:57:12 raspi-groovy systemd[897]: Reached target Sockets. Oct 26 07:57:12 raspi-groovy systemd[897]: Reached target Basic System. Oct 26 07:57:12 raspi-groovy systemd[1]: Started User Manager for UID 108. Oct 26 07:57:12 raspi-groovy systemd[897]: Starting Sound Service... Oct 26 07:57:12 raspi-groovy systemd[1]: Started Session c1 of user lightdm. Oct 26 07:57:12 raspi-groovy systemd[897]: Starting Tracker metadata extractor... Oct 26 07:57:12 raspi-groovy systemd[897]: Starting Tracker file system data miner... Oct 26 07:57:12 raspi-groovy lightdm[893]: gkr-pam: gnome-keyring-daemon started properly Oct 26 07:57:12 raspi-groovy lightdm[649]: Error activating login1 session: GDBus.Error:org.freedesktop.DBus.Error.NotSupported: Operation not supported Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Set scheduler policy to SCHED_IDLE Oct 26 07:57:13 raspi-groovy tracker-extract[905]: Set scheduler policy to SCHED_IDLE Oct 26 07:57:13 raspi-groovy tracker-extract[905]: Setting priority nice level to 19 Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Setting priority nice level to 19 Oct 26 07:57:13 raspi-groovy systemd[897]: Started D-Bus User Message Bus. Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] AppArmor D-Bus mediation is enabled Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.Daemon' unit='gvfs-daemon.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:13 raspi-groovy systemd[897]: Starting Virtual filesystem service... Oct 26 07:57:13 raspi-groovy systemd[897]: Started Sound Service. Oct 26 07:57:13 raspi-groovy bluetoothd[578]: Endpoint registered: sender=:1.54 path=/MediaEndpoint/A2DPSink/sbc Oct 26 07:57:13 raspi-groovy bluetoothd[578]: Endpoint registered: sender=:1.54 path=/MediaEndpoint/A2DPSource/sbc Oct 26 07:57:13 raspi-groovy kernel: Bluetooth: RFCOMM TTY layer initialized Oct 26 07:57:13 raspi-groovy kernel: Bluetooth: RFCOMM socket layer initialized Oct 26 07:57:13 raspi-groovy kernel: Bluetooth: RFCOMM ver 1.11 Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.Daemon' Oct 26 07:57:13 raspi-groovy systemd[897]: Started Virtual filesystem service. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &DOCUMENTS. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &MUSIC. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &PICTURES. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &VIDEOS. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &DOWNLOAD. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &DOCUMENTS. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &MUSIC. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &PICTURES. Ignoring this location. Oct 26 07:57:13 raspi-groovy tracker-miner-f[906]: Unable to get XDG user directory path for special directory &VIDEOS. Ignoring this location. Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.UDisks2VolumeMonitor' unit='gvfs-udisks2-volume-monitor.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:13 raspi-groovy systemd[897]: Starting Virtual filesystem service - disk device monitor... Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.UDisks2VolumeMonitor' Oct 26 07:57:13 raspi-groovy systemd[897]: Started Virtual filesystem service - disk device monitor. Oct 26 07:57:13 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.AfcVolumeMonitor' unit='gvfs-afc-volume-monitor.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:13 raspi-groovy systemd[897]: Starting Virtual filesystem service - Apple File Conduit monitor... Oct 26 07:57:14 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.AfcVolumeMonitor' Oct 26 07:57:14 raspi-groovy systemd[897]: Started Virtual filesystem service - Apple File Conduit monitor. Oct 26 07:57:14 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.GPhoto2VolumeMonitor' unit='gvfs-gphoto2-volume-monitor.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:14 raspi-groovy systemd[897]: Starting Virtual filesystem service - digital camera monitor... Oct 26 07:57:14 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.GPhoto2VolumeMonitor' Oct 26 07:57:14 raspi-groovy systemd[897]: Started Virtual filesystem service - digital camera monitor. Oct 26 07:57:14 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.GoaVolumeMonitor' unit='gvfs-goa-volume-monitor.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:14 raspi-groovy systemd[897]: Starting Virtual filesystem service - GNOME Online Accounts monitor... Oct 26 07:57:14 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating service name='org.gnome.OnlineAccounts' requested by ':1.9' (uid=108 pid=962 comm="/usr/libexec/gvfs-goa-volume-monitor " label="unconfined") Oct 26 07:57:15 raspi-groovy goa-daemon[966]: goa-daemon version 3.37.90 starting Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating service name='org.gnome.Identity' requested by ':1.10' (uid=108 pid=966 comm="/usr/libexec/goa-daemon " label="unconfined") Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gnome.OnlineAccounts' Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.GoaVolumeMonitor' Oct 26 07:57:15 raspi-groovy systemd[897]: Started Virtual filesystem service - GNOME Online Accounts monitor. Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gnome.Identity' Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.MTPVolumeMonitor' unit='gvfs-mtp-volume-monitor.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:15 raspi-groovy systemd[897]: Starting Virtual filesystem service - Media Transfer Protocol monitor... Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.MTPVolumeMonitor' Oct 26 07:57:15 raspi-groovy systemd[897]: Started Virtual filesystem service - Media Transfer Protocol monitor. Oct 26 07:57:15 raspi-groovy dbus-daemon[510]: [system] Activating via systemd: service name='org.freedesktop.UPower' unit='upower.service' requested by ':1.62' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:15 raspi-groovy systemd[1]: Starting Daemon for power management... Oct 26 07:57:15 raspi-groovy systemd[897]: Started Tracker metadata extractor. Oct 26 07:57:15 raspi-groovy dbus-daemon[510]: [system] Successfully activated service 'org.freedesktop.UPower' Oct 26 07:57:15 raspi-groovy systemd[1]: Started Daemon for power management. Oct 26 07:57:15 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.freedesktop.Tracker1' unit='tracker-store.service' requested by ':1.1' (uid=108 pid=906 comm="/usr/libexec/tracker-miner-fs " label="unconfined") Oct 26 07:57:15 raspi-groovy systemd[897]: Starting Tracker metadata database store and lookup manager... Oct 26 07:57:16 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.freedesktop.Tracker1' Oct 26 07:57:16 raspi-groovy systemd[897]: Started Tracker metadata database store and lookup manager. Oct 26 07:57:17 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.a11y.Bus' unit='at-spi-dbus-bus.service' requested by ':1.14' (uid=108 pid=913 comm="/usr/sbin/lightdm-gtk-greeter " label="unconfined") Oct 26 07:57:17 raspi-groovy systemd[897]: Starting Accessibility services bus... Oct 26 07:57:17 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.a11y.Bus' Oct 26 07:57:17 raspi-groovy systemd[897]: Started Accessibility services bus. Oct 26 07:57:17 raspi-groovy systemd[897]: Started Tracker file system data miner. Oct 26 07:57:17 raspi-groovy systemd[897]: Reached target Main User Target. Oct 26 07:57:17 raspi-groovy systemd[897]: Startup finished in 5.773s. Oct 26 07:57:18 raspi-groovy lightdm[893]: pam_unix(lightdm-greeter:session): session closed for user lightdm Oct 26 07:57:18 raspi-groovy lightdm[649]: instance with invalid (NULL) class pointer Oct 26 07:57:18 raspi-groovy lightdm[649]: g_signal_emit_valist: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed Oct 26 07:57:18 raspi-groovy systemd-logind[530]: Session c1 logged out. Waiting for processes to exit. Oct 26 07:57:18 raspi-groovy bluetoothd[578]: Endpoint unregistered: sender=:1.54 path=/MediaEndpoint/A2DPSink/sbc Oct 26 07:57:18 raspi-groovy bluetoothd[578]: Endpoint unregistered: sender=:1.54 path=/MediaEndpoint/A2DPSource/sbc Oct 26 07:57:18 raspi-groovy systemd[897]: pulseaudio.service: Succeeded. Oct 26 07:57:18 raspi-groovy systemd[1]: Xtigervnc@0-192.168.1.83:5901-192.168.1.75:41812.service: Succeeded. Oct 26 07:57:18 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Activating via systemd: service name='org.gtk.vfs.Metadata' unit='gvfs-metadata.service' requested by ':1.2' (uid=108 pid=905 comm="/usr/libexec/tracker-extract " label="unconfined") Oct 26 07:57:18 raspi-groovy systemd[897]: Starting Virtual filesystem metadata service... Oct 26 07:57:18 raspi-groovy dbus-daemon[915]: [session uid=108 pid=915] Successfully activated service 'org.gtk.vfs.Metadata' Oct 26 07:57:18 raspi-groovy systemd[897]: Started Virtual filesystem metadata service. Oct 26 07:57:30 raspi-groovy systemd[897]: tracker-extract.service: Succeeded. Oct 26 07:57:30 raspi-groovy systemd[897]: tracker-extract.service: Consumed 1.103s CPU time. 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