Comment # 6 on bug 1185994 from QK ZHU

Could you:
1. # open gdm debug info by uncommenting:
  /etc/gdm/custom.conf
  [debug]
  Enable=true

2. open logind debug info by:
   copy /usr/lib/systemd/system/systemd-logind.service to
   /etc/systemd/system/systemd-logind.service and then edit it there. Add
   "Environment=SYSTEMD_LOG_LEVEL=debug" to the [Service] section.
3. reboot then reproduce this issue
4. provide logs by:
   sudo journalctl -b > journalctl.txt