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Observation¶

https://stats.openqa-monitor.qa.suse.de/d/KToPYLEWz/failed-systemd-services alerted, points to openqaworker6. systemctl --failed on that machine reveals that display-manager.service is at fault here, details from systemctl status display-manager:

$ sudo systemctl status display-manager.service 
● display-manager.service - X Display Manager
   Loaded: loaded (/usr/lib/systemd/system/display-manager.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sun 2020-09-13 03:37:43 CEST; 1 day 11h ago
    Tasks: 21
   CGroup: /system.slice/display-manager.service
           ├─11229 /usr/bin/xdm
           ├─11304 /usr/bin/X -nolisten tcp -br vt7 -keeptty -auth /var/lib/xdm/authdir/authfiles/A:0-zcYw1g
           ├─14468 -:0         
           └─14647 /usr/bin/xconsole -notify -nostdin -verbose -exitOnFail

Sep 13 03:37:42 openqaworker6 display-manager[9118]: Command: localectl set-keymap de-nodeadkeys
Sep 13 03:37:42 openqaworker6 display-manager[9118]: I: Using systemd /usr/share/systemd/kbd-model-map mapping
Sep 13 03:37:43 openqaworker6 root[9951]: /etc/init.d/xdm: No changes for /etc/X11/xdm/Xservers
Sep 13 03:37:43 openqaworker6 display-manager[9118]: Starting service xdm..failed
Sep 13 03:37:43 openqaworker6 systemd[1]: display-manager.service: Control process exited, code=exited status=1
Sep 13 03:37:43 openqaworker6 systemd[1]: Failed to start X Display Manager.
Sep 13 03:37:44 openqaworker6 systemd[1]: display-manager.service: Unit entered failed state.
Sep 13 03:37:44 openqaworker6 systemd[1]: display-manager.service: Triggering OnFailure= dependencies.
Sep 13 03:37:44 openqaworker6 systemd[1]: display-manager.service: Failed to enqueue OnFailure= job: No such file or directory
Sep 13 03:37:44 openqaworker6 systemd[1]: display-manager.service: Failed with result 'exit-code'.

I wonder why we even try to start a display manager on that machine, should be headless.