Arch Linux

zpg443

Member

Registered: 2016-12-03

Posts: 300

Using KDE, sddm-helper crashed (exit code 15) during shutdown

Dual monitor set up using KDE as the DE. Shutdown completes, but not before generating this in the journal each time.

journalctl -b -1

Jun 09 10:35:11 archmain systemd-logind[511]: System is powering down.
Jun 09 10:35:11 archmain sddm[550]: Authentication error: "Process crashed"
Jun 09 10:35:11 archmain sddm[550]: Auth: sddm-helper crashed (exit code 15)
Jun 09 10:35:11 archmain sddm[550]: Authentication error: "Process crashed"
Jun 09 10:35:11 archmain sddm[550]: Auth: sddm-helper exited with 15
Jun 09 10:35:11 archmain sddm[550]: Socket server stopping...
Jun 09 10:35:11 archmain sddm[550]: Socket server stopped.
Jun 09 10:35:11 archmain sddm[550]: Display server stopping...
Jun 09 10:35:11 archmain kdeinit5[702]: kdeinit5: Fatal IO error: client killed
Jun 09 10:35:11 archmain kdeinit5[702]: kdeinit5: sending SIGHUP to children.
Jun 09 10:35:11 archmain kdeconnectd[19248]: The X11 connection broke (error 1). Did the X11 server die?
Jun 09 10:35:11 archmain at-spi-bus-launcher[983]: X connection to :0 broken (explicit kill or server shutdown).
Jun 09 10:35:11 archmain kscreen_backend_launcher[930]: The X11 connection broke (error 1). Did the X11 server die?
Jun 09 10:35:11 archmain kactivitymanagerd[857]: The X11 connection broke (error 1). Did the X11 server die?
Jun 09 10:35:11 archmain kdeinit5[702]: kdeinit5: sending SIGTERM to children.
Jun 09 10:35:11 archmain kdeinit5[702]: kdeinit5: Exit.
Jun 09 10:35:11 archmain kglobalaccel5[734]: The X11 connection broke (error 1). Did the X11 server die?
Jun 09 10:35:11 archmain kded5[715]: Service  "org.kde.StatusNotifierItem-838-1" unregistered
Jun 09 10:35:11 archmain kded5[715]: The X11 connection broke: I/O error (code 1)

Configuration does not appear to be an issue.

/etc/sddm.conf

[Autologin]
Relogin=false
Session=
User=

[General]
HaltCommand=/usr/bin/systemctl poweroff
InputMethod=
Numlock=none
RebootCommand=/usr/bin/systemctl reboot

[Theme]
Current=maldives
CursorTheme=Adwaita
DisableAvatarsThreshold=3
EnableAvatars=true
FacesDir=/usr/share/sddm/faces
ThemeDir=/usr/share/sddm/themes

[Users]
MaximumUid=65000
MinimumUid=1000
RememberLastSession=false
RememberLastUser=true
ReuseSession=false

[Wayland]
EnableHiDPI=true
SessionCommand=/usr/share/sddm/scripts/wayland-session
SessionDir=/usr/share/wayland-sessions
SessionLogFile=.local/share/sddm/wayland-session.log

[X11]
DisplayCommand=/usr/share/sddm/scripts/Xsetup
DisplayStopCommand=/usr/share/sddm/scripts/Xstop
EnableHiDPI=true
MinimumVT=1
ServerArguments=-nolisten tcp
ServerPath=/usr/bin/X
SessionCommand=/usr/share/sddm/scripts/Xsession
SessionDir=/usr/share/xsessions
SessionLogFile=.local/share/sddm/xorg-session.log
UserAuthFile=.Xauthority
XauthPath=/usr/bin/xauth
XephyrPath=/usr/bin/Xephyr

No issues with login, either.

systemctl status sddm.service

● sddm.service - Simple Desktop Display Manager
     Loaded: loaded (/usr/lib/systemd/system/sddm.service; enabled; vendor preset: disabled)
     Active: active (running) since Tue 2020-06-09 10:35:44 CDT; 52min ago
       Docs: man:sddm(1)
             man:sddm.conf(5)
   Main PID: 539 (sddm)
      Tasks: 15 (limit: 18831)
     Memory: 235.3M
     CGroup: /system.slice/sddm.service
             ├─539 /usr/bin/sddm
             ├─548 /usr/lib/Xorg -nolisten tcp -auth /var/run/sddm/{c540b563-4246-42af-b494-183a35e16bb9} -background none -noreset -displayfd 17 -seat seat0 vt1
             └─660 /usr/bin/kwalletd5 --pam-login 7 3

Jun 09 10:35:50 archmain sddm[539]: Auth: sddm-helper exited successfully
Jun 09 10:35:50 archmain sddm[539]: Greeter stopped.
Jun 09 10:35:50 archmain sddm-helper[659]: pam_kwallet5: final socket path: /tmp/kwallet5_xxxxx.socket
Jun 09 10:35:50 archmain sddm-helper[656]: pam_unix(sddm:session): session opened for user xxxxx by (uid=0)
Jun 09 10:35:50 archmain sddm-helper[656]: gkr-pam: gnome-keyring-daemon started properly and unlocked keyring
Jun 09 10:35:50 archmain sddm-helper[656]: Starting: "/usr/share/sddm/scripts/Xsession \"/usr/bin/startplasma-x11\""
Jun 09 10:35:50 archmain sddm[539]: Session started

Is there something resembling a troubleshooting guide or workaround for sddm or sddm-helper? I plan to submit a github ticket for sddm, but not before checking here first.

Last edited by zpg443 (2020-06-09 17:36:04)

zpg443

Member

Registered: 2016-12-03

Posts: 300

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Github ticket submitted today.

Using KDE, sddm-helper crashes (exit code 15) during shutdown #1261

iyanmv

Member

Registered: 2016-11-08

Posts: 40

Website

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Yeah, same problem here. But I don't think is a SSDM bug but Plasma related. Check this bug: https://bugs.kde.org/show_bug.cgi?id=422870

zpg443

Member

Registered: 2016-12-03

Posts: 300

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Yeah, same problem here. But I don't think is a SSDM bug but Plasma related. Check this bug: https://bugs.kde.org/show_bug.cgi?id=422870

Not the same bug, which is "Reboot and shutdown result in logout". In this case, sddm-helper crashed (exit code 15). It does not force just logout. It completes shutdown or reboot, but with errors.

Opened a new report on the KDE forum:

https://forum.kde.org/viewtopic.php?f=289&t=166770

zpg443

Member

Registered: 2016-12-03

Posts: 300

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

It is not likely KDE-related. Error reproduced when starting sddm-greeter, then shutting down without launching plasma.

According to Vogtinator at github,

"It seems like systemd sends SIGTERM to sddm-helper or sddm-greeter instead of terminating the service. "

Not sure what systemd configuration would be doing this.

birdflesh

Member

From: Greece

Registered: 2010-08-04

Posts: 97

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Did you manage to find more information about this? Same problem on my system too.

zpg443

Member

Registered: 2016-12-03

Posts: 300

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

This sddm issue still has not been resolved to my knowledge.

LRitzdorf

Member

Registered: 2022-12-08

Posts: 27

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

I'm encountering what appears to be a similar issue on my system, using i3 and sddm. I notice it occurring when I attempt to log out using "loginctl terminate-session" (or rather, when I use jluttine's Rofi Power Menu to log out), but see nearly identical logs from sddm.service. "i3-msg exit", however, works normally.

Given these differences, it seems that there might be an issue with the way loginctl interacts with some DEs/WMs? This is a wild guess, as I have no experience with those sorts of interactions. However, if KDE's shutdown process includes using loginctl to end sessions, this could be the source of the OP's issue.

seth

Member

Registered: 2012-09-03

Posts: 63,690

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

This was a long standing problem w/ SDDM and the common suggestion to use sddm-git, but SDDM has just™ been updated to 0.20, does the problem still exist w/ that version?

---

How to upload text · How to boot w/o GUI · Disable Windows Fast-Start! · Fix your xinitrc

LRitzdorf

Member

Registered: 2022-12-08

Posts: 27

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

It does appear to, yes. I received the update on 2023-06-24, just before noticing this issue.
Also, this being an issue with SDDM makes sense — I'd also tested with Awesome and Openbox, which exhibit the same behavior as i3 in this case.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,407

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Did you notice this issue "again" before or after having rebooted? Do you notice it now/later today when shutting down? If you noticed it on the same boot you got the update the old sddm will have still been running. The long standing issue should™ be fixed by the current version assuming it's actively running one. (FWIW I did used to use sddm-git due to a similar issue and the problem didn't reappear when switching to 0.20)

LRitzdorf

Member

Registered: 2022-12-08

Posts: 27

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Just to clarify, my issue appears similar to the OP's, but doesn't manifest (that I've seen) on shutdown. Perhaps it deserves a new thread?

I'm encountering what appears to be a similar issue on my system, using i3 and sddm. I notice it occurring when I attempt to log out using "loginctl terminate-session" (or rather, when I use jluttine's Rofi Power Menu to log out), but see nearly identical logs from sddm.service. "i3-msg exit", however, works normally.

Also, yes, I'm certain that I'm running SDDM 0.20. I had rebooted my system after updating, and also tested again today on a clean boot.

Last edited by LRitzdorf (2023-06-27 18:50:53)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 24,407

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

Probably yes on the new thread part, please include a journal when it happens, i.e.

sudo journalctl -b

if you can reproduce on the currently active boot

Potomac

Member

Registered: 2011-12-25

Posts: 529

Re: Using KDE, sddm-helper crashed (exit code 15) during shutdown

I have also a crash on shutdown for sddm-helper :

nov. 04 18:37:31 archlinux sddm-helper[507]: Signal received: SIGTERM
nov. 04 18:37:31 archlinux systemd[1]: Stopping Session 2 of User potomac...
nov. 04 18:37:31 archlinux systemd[510]: Stopped Xdg Desktop Portal For KDE.
nov. 04 18:37:31 archlinux systemd[510]: Stopped sandboxed app permission store.
nov. 04 18:37:31 archlinux sddm[388]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
nov. 04 18:37:31 archlinux sddm[388]: Auth: sddm-helper (--socket /tmp/sddm-auth-8a407bcd-96be-4d43-abb7-a8805df1f3be --id 1 --start /usr/bin/startplasma->
nov. 04 18:37:31 archlinux sddm[388]: Authentication error: SDDM::Auth::ERROR_INTERNAL "Process crashed"
nov. 04 18:37:31 archlinux sddm[388]: Auth: sddm-helper exited with 1

It seems that the bug is still not solved.

Last edited by Potomac (2023-11-04 17:50:39)