Delay by user nobody

Long wait occurs during boot caused by user nobody:


**3400G:~ #** journalctl -b 0 -u user@65534.service 
-- Logs begin at Sat 2020-12-12 12:09:37 CET, end at Sun 2021-02-14 07:57:16 CET. -- 
Feb 14 07:41:32 3400G systemd[1]: Starting User Manager for UID 65534... 
Feb 14 07:41:32 3400G systemd[882]: **pam_warn(systemd-user:setcred): function=[pam_sm_setcred] flags=0x8002 service=[systemd-user] terminal=<unknown>] user=[nobody] ruser=<unknown>] rhost=<unknown>]**
Feb 14 07:41:32 3400G systemd[882]: pam_unix(systemd-user:session): session opened for user nobody(uid=65534) by (uid=0) 
Feb 14 07:41:32 3400G systemd-xdg-autostart-generator[914]: **Configuration file /etc/xdg/autostart/klipper.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.**
Feb 14 07:41:32 3400G systemd[882]: Queued start job for default target Main User Target. 
Feb 14 07:41:32 3400G systemd[882]: Reached target Paths. 
Feb 14 07:41:32 3400G systemd[882]: Reached target Timers. 
Feb 14 07:41:32 3400G systemd[882]: Starting D-Bus User Message Bus Socket. 
Feb 14 07:41:32 3400G systemd[882]: Listening on Multimedia System. 
Feb 14 07:41:32 3400G systemd[882]: Listening on Sound System. 
Feb 14 07:41:32 3400G systemd[882]: Listening on D-Bus User Message Bus Socket. 
Feb 14 07:41:32 3400G systemd[882]: Reached target Sockets. 
Feb 14 07:41:32 3400G systemd[882]: Reached target Basic System. 
Feb 14 07:41:32 3400G systemd[882]: Reached target Main User Target. 
Feb 14 07:41:32 3400G systemd[882]: Startup finished in 710ms. 
Feb 14 07:41:32 3400G systemd[1]: Started User Manager for UID 65534. 
Feb 14 07:42:20 3400G systemd[1]: Stopping User Manager for UID 65534... 
Feb 14 07:42:20 3400G systemd[882]: Stopped target Main User Target. 
Feb 14 07:42:20 3400G systemd[882]: Stopped target Basic System. 
Feb 14 07:42:20 3400G systemd[882]: Stopped target Paths. 
Feb 14 07:42:20 3400G systemd[882]: Stopped target Sockets. 
Feb 14 07:42:20 3400G systemd[882]: Stopped target Timers. 
Feb 14 07:42:20 3400G systemd[882]: dbus.socket: Succeeded. 
Feb 14 07:42:20 3400G systemd[882]: Closed D-Bus User Message Bus Socket. 
Feb 14 07:42:20 3400G systemd[882]: pipewire.socket: Succeeded. 
Feb 14 07:42:20 3400G systemd[882]: Closed Multimedia System. 
Feb 14 07:42:20 3400G systemd[882]: pulseaudio.socket: Succeeded. 
Feb 14 07:42:20 3400G systemd[882]: Closed Sound System. 
Feb 14 07:42:20 3400G systemd[882]: Reached target Shutdown. 
Feb 14 07:42:20 3400G systemd[882]: systemd-exit.service: Succeeded. 
Feb 14 07:42:20 3400G systemd[882]: Finished Exit the Session. 
Feb 14 07:42:20 3400G systemd[882]: Reached target Exit the Session. 
Feb 14 07:42:20 3400G systemd[904]: **pam_warn(systemd-user:setcred): function=[pam_sm_setcred] flags=0x8004 service=[systemd-user] terminal=<unknown>] user=[nobody] ruser=<unknown>] rhost=<unknown>]**
Feb 14 07:42:20 3400G systemd[1]: user@65534.service: Succeeded. 
Feb 14 07:42:20 3400G systemd[1]: Stopped User Manager for UID 65534. 
**3400G:~ #**

Older sessions terminated fast and caused no delay:

**3400G:~ #** journalctl -b -17 -u user@65534.service  
-- Logs begin at Sat 2020-12-12 12:09:37 CET, end at Sun 2021-02-14 08:01:03 CET. -- 
Feb 03 13:23:09 3400G systemd[1]: Starting User Manager for UID 65534... 
Feb 03 13:23:09 3400G systemd[860]: **pam_warn(systemd-user:setcred): function=[pam_sm_setcred] flags=0x8002 service=[systemd-user] terminal=<unknown>] user=[nobody] ruser=<unknown>] rhost=<unknown>]**
Feb 03 13:23:09 3400G systemd[860]: pam_unix(systemd-user:session): session opened for user nobody(uid=65534) by (uid=0) 
Feb 03 13:23:09 3400G systemd-xdg-autostart-generator[888]: **Configuration file /etc/xdg/autostart/klipper.desktop is marked executable. Please remove executable permission bits. Proceeding anyway.**
Feb 03 13:23:09 3400G systemd[860]: Queued start job for default target Main User Target. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Paths. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Timers. 
Feb 03 13:23:09 3400G systemd[860]: Starting D-Bus User Message Bus Socket. 
Feb 03 13:23:09 3400G systemd[860]: Listening on Multimedia System. 
Feb 03 13:23:09 3400G systemd[860]: Listening on Sound System. 
Feb 03 13:23:09 3400G systemd[860]: Listening on D-Bus User Message Bus Socket. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Sockets. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Basic System. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Main User Target. 
Feb 03 13:23:09 3400G systemd[860]: Startup finished in 172ms. 
Feb 03 13:23:09 3400G systemd[1]: Started User Manager for UID 65534. 
Feb 03 13:23:09 3400G systemd[860]: Reached target Sound Card. 
Feb 03 13:23:22 3400G systemd[1]: Stopping User Manager for UID 65534... 
Feb 03 13:23:22 3400G systemd[1]: user@65534.service: Succeeded. 
Feb 03 13:23:22 3400G systemd[1]: Stopped User Manager for UID 65534. 
**3400G:~ #**

Any idea?

Log with large delay:

**3400G:~ #** journalctl -b -u display-manager.service         
-- Logs begin at Sat 2020-12-12 12:09:37 CET, end at Sun 2021-02-14 08:11:47 CET. -- 
Feb 14 07:41:32 3400G systemd[1]: Starting X Display Manager... 
Feb 14 07:41:32 3400G display-manager[934]: /etc/vconsole.conf available 
Feb 14 07:41:32 3400G display-manager[934]: KEYMAP: de-latin1-nodeadkeys 
Feb 14 07:41:32 3400G display-manager[934]: Command: localectl set-keymap de-latin1-nodeadkeys 
Feb 14 07:41:32 3400G display-manager[934]: I: Using systemd /usr/share/systemd/kbd-model-map mapping 
Feb 14 07:41:33 3400G systemd[1]: display-manager.service: Can't open PID file /run/displaymanager.pid (yet?) after start: Operation not permitted 
Feb 14 07:41:33 3400G sddm[1017]: Initializing... 
Feb 14 07:41:33 3400G systemd[1]: Started X Display Manager. 
Feb 14 07:41:33 3400G sddm[1017]: Starting... 
Feb 14 07:41:33 3400G sddm[1017]: Logind interface found 
Feb 14 07:41:33 3400G sddm[1017]: Adding new display on vt 7 ... 
Feb 14 07:41:33 3400G sddm[1017]: Loading theme configuration from "" 
Feb 14 07:41:33 3400G sddm[1017]: Display server starting... 
Feb 14 07:41:33 3400G sddm[1017]: Running: /usr/bin/X -nolisten tcp -auth /run/sddm/{9647599f-57a6-4999-aa85-6d0df8e1d63c} -background none -noreset -displayfd 17 -seat seat0 vt7 
Feb 14 07:41:43 3400G sddm[1017]: Setting default cursor 
Feb 14 07:41:43 3400G sddm[1017]: Running display setup script  "/usr/etc/X11/xdm/Xsetup" 
Feb 14 07:41:44 3400G sddm[1017]: Display server started. 
Feb 14 07:41:44 3400G sddm[1017]: Socket server starting... 
Feb 14 07:41:44 3400G sddm[1017]: Socket server started. 
Feb 14 07:41:44 3400G sddm[1017]: Loading theme configuration from "/usr/share/sddm/themes/breeze-openSUSE/theme.conf" 
Feb 14 07:41:44 3400G sddm[1017]: Greeter starting... 
Feb 14 07:41:44 3400G sddm-helper[1238]: [PAM] Starting... 
Feb 14 07:41:44 3400G sddm-helper[1238]: [PAM] Authenticating... 
Feb 14 07:41:44 3400G sddm-helper[1238]: [PAM] returning. 
Feb 14 07:41:44 3400G sddm-helper[1238]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=477) by (uid=0) 
Feb 14 07:41:44 3400G sddm[1017]: Greeter session started successfully 
Feb 14 07:41:46 3400G sddm[1017]: Message received from greeter: Connect 
Feb 14 07:42:05 3400G sddm[1017]: Message received from greeter: Login 
Feb 14 07:42:05 3400G sddm[1017]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 14 07:42:05 3400G sddm[1017]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 14 07:42:05 3400G sddm[1017]: Session "/usr/share/xsessions/plasma5.desktop" selected, command: "/usr/bin/startplasma-x11" 
Feb 14 07:42:05 3400G sddm-helper[1669]: [PAM] Starting... 
Feb 14 07:42:05 3400G sddm-helper[1669]: [PAM] Authenticating... 
Feb 14 07:42:05 3400G sddm-helper[1669]: [PAM] Preparing to converse... 
Feb 14 07:42:05 3400G sddm-helper[1669]: [PAM] Conversation with 1 messages 
Feb 14 07:42:05 3400G sddm-helper[1669]: **pam_unix(sddm:auth): authentication failure; logname= uid=0 euid=0 tty= ruser= rhost=  user=karl** 
Feb 14 07:42:08 3400G sddm-helper[1669]: **[PAM] authenticate: Fehler bei Authentifizierung** 
Feb 14 07:42:08 3400G sddm-helper[1669]: [PAM] returning. 
Feb 14 07:42:08 3400G sddm[1017]: **Authentication error: "Fehler bei Authentifizierung"** 
Feb 14 07:42:08 3400G sddm-helper[1669]: [PAM] Ended. 
Feb 14 07:42:08 3400G sddm[1017]: **Auth: sddm-helper exited with 1** 
Feb 14 07:42:16 3400G sddm[1017]: Message received from greeter: Login 
Feb 14 07:42:16 3400G sddm[1017]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 14 07:42:16 3400G sddm[1017]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 14 07:42:16 3400G sddm[1017]: Session "/usr/share/xsessions/plasma5.desktop" selected, command: "/usr/bin/startplasma-x11" 
Feb 14 07:42:16 3400G sddm-helper[2187]: [PAM] Starting... 
Feb 14 07:42:16 3400G sddm-helper[2187]: [PAM] Authenticating... 
Feb 14 07:42:16 3400G sddm-helper[2187]: [PAM] Preparing to converse... 
Feb 14 07:42:16 3400G sddm-helper[2187]: [PAM] Conversation with 1 messages 
Feb 14 07:42:16 3400G sddm-helper[2187]: [PAM] returning. 
Feb 14 07:42:16 3400G sddm[1017]: Authenticated successfully 
Feb 14 07:42:16 3400G sddm[1017]: Auth: sddm-helper exited successfully 
Feb 14 07:42:16 3400G sddm[1017]: Greeter stopped. 
Feb 14 07:42:16 3400G sddm-helper[2187]: pam_unix(sddm:session): session opened for user karl(uid=1000) by (uid=0) 
Feb 14 07:42:16 3400G sddm-helper[2187]: Starting: "/usr/etc/X11/xdm/Xsession \"/usr/bin/startplasma-x11\"" 
Feb 14 07:42:16 3400G sddm[1017]: Session started 
**3400G:~ #** 


Log with no delay:

**3400G:~ #** journalctl -b -17 -u display-manager.service      
-- Logs begin at Sat 2020-12-12 12:09:37 CET, end at Sun 2021-02-14 08:11:47 CET. -- 
Feb 03 13:23:09 3400G systemd[1]: Starting X Display Manager... 
Feb 03 13:23:09 3400G display-manager[863]: /etc/vconsole.conf available 
Feb 03 13:23:09 3400G display-manager[863]: KEYMAP: de-latin1-nodeadkeys 
Feb 03 13:23:09 3400G display-manager[863]: Command: localectl set-keymap de-latin1-nodeadkeys 
Feb 03 13:23:09 3400G display-manager[863]: I: Using systemd /usr/share/systemd/kbd-model-map mapping 
Feb 03 13:23:09 3400G sddm[974]: Initializing... 
Feb 03 13:23:09 3400G sddm[974]: Starting... 
Feb 03 13:23:09 3400G sddm[974]: Logind interface found 
Feb 03 13:23:09 3400G sddm[974]: Adding new display on vt 7 ... 
Feb 03 13:23:09 3400G sddm[974]: Loading theme configuration from "" 
Feb 03 13:23:09 3400G sddm[974]: Display server starting... 
Feb 03 13:23:09 3400G sddm[974]: Running: /usr/bin/X -nolisten tcp -auth /run/sddm/{34247df9-f7c0-4a64-9f87-e1ddac264eaa} -background none -noreset -displayfd 17 -seat seat0 vt7 
Feb 03 13:23:10 3400G systemd[1]: Started X Display Manager. 
Feb 03 13:23:10 3400G sddm[974]: Setting default cursor 
Feb 03 13:23:10 3400G sddm[974]: Running display setup script  "/usr/etc/X11/xdm/Xsetup" 
Feb 03 13:23:10 3400G sddm[974]: Display server started. 
Feb 03 13:23:10 3400G sddm[974]: Socket server starting... 
Feb 03 13:23:10 3400G sddm[974]: Socket server started. 
Feb 03 13:23:10 3400G sddm[974]: Loading theme configuration from "/usr/share/sddm/themes/breeze-openSUSE/theme.conf" 
Feb 03 13:23:10 3400G sddm[974]: Greeter starting... 
Feb 03 13:23:10 3400G sddm-helper[1261]: [PAM] Starting... 
Feb 03 13:23:10 3400G sddm-helper[1261]: [PAM] Authenticating... 
Feb 03 13:23:10 3400G sddm-helper[1261]: [PAM] returning. 
Feb 03 13:23:11 3400G sddm-helper[1261]: pam_unix(sddm-greeter:session): session opened for user sddm(uid=477) by (uid=0) 
Feb 03 13:23:11 3400G sddm[974]: Greeter session started successfully 
Feb 03 13:23:11 3400G sddm[974]: Message received from greeter: Connect 
Feb 03 13:23:16 3400G sddm[974]: Message received from greeter: Login 
Feb 03 13:23:16 3400G sddm[974]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 03 13:23:16 3400G sddm[974]: Reading from "/usr/share/xsessions/plasma5.desktop" 
Feb 03 13:23:16 3400G sddm[974]: Session "/usr/share/xsessions/plasma5.desktop" selected, command: "/usr/bin/startplasma-x11" 
Feb 03 13:23:16 3400G sddm-helper[2318]: [PAM] Starting... 
Feb 03 13:23:16 3400G sddm-helper[2318]: [PAM] Authenticating... 
Feb 03 13:23:16 3400G sddm-helper[2318]: [PAM] Preparing to converse... 
Feb 03 13:23:16 3400G sddm-helper[2318]: [PAM] Conversation with 1 messages 
Feb 03 13:23:16 3400G sddm-helper[2318]: [PAM] returning. 
Feb 03 13:23:16 3400G sddm[974]: Authenticated successfully 
Feb 03 13:23:16 3400G sddm[974]: Auth: sddm-helper exited successfully 
Feb 03 13:23:16 3400G sddm[974]: Greeter stopped. 
Feb 03 13:23:16 3400G sddm-helper[2318]: pam_unix(sddm:session): session opened for user karl(uid=1000) by (uid=0) 
Feb 03 13:23:16 3400G sddm-helper[2318]: Starting: "/usr/etc/X11/xdm/Xsession \"/usr/bin/startplasma-x11\"" 
Feb 03 13:23:16 3400G sddm[974]: Session started 
**3400G:~ #**