Dell AW17R3, Skylake i7-6700HQ, nVidia GTX 970M, Thunderbolt USB-C, Ubuntu 16.04.5 LTS, Kernel 4.13-0-36-generic. Error appears with `journalctl --follow` whilst monitoring for unrelated error message tonight.
Complete log below: $ journalctl --follow -- Logs begin at Sat 2018-08-04 14:57:01 MDT. -- Sep 12 19:54:46 alien sudo[11861]: root : TTY=unknown ; PWD=/root ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/intel_backlight/brightness Sep 12 19:54:46 alien sudo[11861]: pam_unix(sudo:session): session opened for user root by (uid=0) Sep 12 19:54:46 alien sudo[11861]: pam_unix(sudo:session): session closed for user root Sep 12 19:54:46 alien sudo[11858]: pam_unix(sudo:session): session closed for user root Sep 12 19:55:46 alien sudo[15339]: root : TTY=unknown ; PWD=/root ; USER=root ; COMMAND=/bin/sh -c echo 654 | sudo tee /sys/class/backlight/intel_backlight/brightness Sep 12 19:55:46 alien sudo[15339]: pam_unix(sudo:session): session opened for user root by (uid=0) Sep 12 19:55:46 alien sudo[15342]: root : TTY=unknown ; PWD=/root ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/intel_backlight/brightness Sep 12 19:55:46 alien sudo[15342]: pam_unix(sudo:session): session opened for user root by (uid=0) Sep 12 19:55:46 alien sudo[15342]: pam_unix(sudo:session): session closed for user root Sep 12 19:55:46 alien sudo[15339]: pam_unix(sudo:session): session closed for user root Sep 12 19:56:46 alien sudo[18777]: root : TTY=unknown ; PWD=/root ; USER=root ; COMMAND=/bin/sh -c echo 650 | sudo tee /sys/class/backlight/intel_backlight/brightness Sep 12 19:56:46 alien sudo[18777]: pam_unix(sudo:session): session opened for user root by (uid=0) Sep 12 19:56:46 alien sudo[18780]: root : TTY=unknown ; PWD=/root ; USER=root ; COMMAND=/usr/bin/tee /sys/class/backlight/intel_backlight/brightness Sep 12 19:56:46 alien sudo[18780]: pam_unix(sudo:session): session opened for user root by (uid=0) Sep 12 19:56:46 alien sudo[18780]: pam_unix(sudo:session): session closed for user root Sep 12 19:56:46 alien sudo[18777]: pam_unix(sudo:session): session closed for user root Sep 12 19:59:00 alien wpa_supplicant[1399]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (org.freedesktop.DBus.Error.Failed) failed to parse RSN IE Sep 12 19:59:00 alien wpa_supplicant[1399]: dbus: Failed to construct signal Sep 12 20:00:01 alien CRON[30005]: pam_unix(cron:session): session opened for user root by (uid=0) Sep 12 20:00:01 alien CRON[30006]: pam_unix(cron:session): session opened for user root by (uid=0) Sep 12 20:00:01 alien CRON[30007]: (root) CMD (/sbin/fstrim /) Sep 12 20:00:01 alien CRON[30008]: (root) CMD (/usr/bin/updatedb) Sep 12 20:00:06 alien CRON[30006]: pam_unix(cron:session): session closed for user root Sep 12 20:00:06 alien CRON[30005]: pam_unix(cron:session): session closed for user root Sep 12 20:01:58 alien upowerd[1945]: (upowerd:1945): UPower-Linux-WARNING **: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.2/0003:046D:C52B.0005/0003:046D:2010.0009/power_supply/hidpp_battery_3 Sep 12 20:05:00 alien wpa_supplicant[1399]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (org.freedesktop.DBus.Error.Failed) failed to parse RSN IE Sep 12 20:05:00 alien wpa_supplicant[1399]: dbus: Failed to construct signal Sep 12 20:15:01 alien CRON[18052]: pam_unix(cron:session): session opened for user root by (uid=0) Sep 12 20:15:01 alien CRON[18053]: (root) CMD (/usr/bin/updatedb) Sep 12 20:15:06 alien CRON[18052]: pam_unix(cron:session): session closed for user root Sep 12 20:17:00 alien wpa_supplicant[1399]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (org.freedesktop.DBus.Error.Failed) failed to parse RSN IE Sep 12 20:17:00 alien wpa_supplicant[1399]: dbus: Failed to construct signal Sep 12 20:17:01 alien CRON[24974]: pam_unix(cron:session): session opened for user root by (uid=0) Sep 12 20:17:01 alien CRON[24975]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Sep 12 20:17:01 alien CRON[24974]: pam_unix(cron:session): session closed for user root Sep 12 20:23:00 alien wpa_supplicant[1399]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (org.freedesktop.DBus.Error.Failed) failed to parse RSN IE Sep 12 20:23:00 alien wpa_supplicant[1399]: dbus: Failed to construct signal Sep 12 20:28:33 alien upowerd[1945]: (upowerd:1945): UPower-Linux-WARNING **: treating change event as add on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-9/1-9:1.2/0003:046D:C52B.0005/0003:046D:2010.0009/power_supply/hidpp_battery_3 Sep 12 20:30:01 alien CRON[6024]: pam_unix(cron:session): session opened for user root by (uid=0) Sep 12 20:30:01 alien CRON[6025]: (root) CMD (/usr/bin/updatedb) Sep 12 20:30:06 alien CRON[6024]: pam_unix(cron:session): session closed for user root -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1439771 Title: wpa_supplicant[874]: dbus: Failed to construct signal after 'suspend' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1439771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs