Arch Linux

bilal-io

Member

Registered: 2019-02-01

Posts: 1

Issue with SDDM - I cannot login after I logout

Hello everyone, your help is much appreciated.

I can login to my system without an issue. but if I logout, I cannot go back it.
It authenticates me, then goes back to the DM.

Here is the journalctl for sddm separated into events:

sddm initialization

Jan 31 17:37:37 arch systemd[1]: Started Simple Desktop Display Manager.
Jan 31 17:37:37 arch sddm[608]: Initializing...
Jan 31 17:37:37 arch sddm[608]: Starting...
Jan 31 17:37:37 arch sddm[608]: Logind interface found
Jan 31 17:37:37 arch sddm[608]: Adding new display on vt 1 ...
Jan 31 17:37:37 arch sddm[608]: Loading theme configuration from ""
Jan 31 17:37:37 arch sddm[608]: Display server starting...
Jan 31 17:37:37 arch sddm[608]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{41e9f899-64b8-40b2-a131-7edca8c4676d} -background none -noreset -displayfd 17 -seat seat0 vt1
Jan 31 17:37:38 arch sddm[608]: Setting default cursor
Jan 31 17:37:38 arch sddm[608]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Jan 31 17:37:38 arch sddm[608]: Display server started.
Jan 31 17:37:38 arch sddm[608]: Socket server starting...
Jan 31 17:37:38 arch sddm[608]: Socket server started.
Jan 31 17:37:38 arch sddm[608]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Jan 31 17:37:38 arch sddm[608]: Greeter starting...
Jan 31 17:37:38 arch sddm[608]: Adding cookie to "/var/run/sddm/{41e9f899-64b8-40b2-a131-7edca8c4676d}"
Jan 31 17:37:38 arch sddm-helper[619]: [PAM] Starting...
Jan 31 17:37:38 arch sddm-helper[619]: [PAM] Authenticating...
Jan 31 17:37:38 arch sddm-helper[619]: [PAM] returning.
Jan 31 17:37:38 arch sddm-helper[619]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Jan 31 17:37:38 arch sddm[608]: Greeter session started successfully
Jan 31 17:37:38 arch sddm[608]: Message received from greeter: Connect

First login

Jan 31 17:39:08 arch sddm[608]: Message received from greeter: Login
Jan 31 17:39:08 arch sddm[608]: Reading from "/usr/share/xsessions/plasma.desktop"
Jan 31 17:39:08 arch sddm[608]: Reading from "/usr/share/xsessions/plasma.desktop"
Jan 31 17:39:08 arch sddm[608]: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startkde"
Jan 31 17:39:08 arch sddm-helper[686]: [PAM] Starting...
Jan 31 17:39:08 arch sddm-helper[686]: [PAM] Authenticating...
Jan 31 17:39:08 arch sddm-helper[686]: [PAM] Preparing to converse...
Jan 31 17:39:08 arch sddm-helper[686]: [PAM] Conversation with 1 messages
Jan 31 17:39:08 arch sddm-helper[686]: pam_kwallet5(sddm:auth): (null): pam_sm_authenticate
Jan 31 17:39:08 arch sddm-helper[686]: [PAM] returning.
Jan 31 17:39:08 arch sddm[608]: Authenticated successfully
Jan 31 17:39:08 arch sddm-helper[686]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Jan 31 17:39:08 arch sddm-helper[686]: pam_unix(sddm:session): session opened for user bilal by (uid=0)
Jan 31 17:39:08 arch sddm-helper[686]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_open_session
Jan 31 17:39:08 arch sddm-helper[686]: Starting: "/usr/share/sddm/scripts/Xsession \"/usr/bin/startkde\""
Jan 31 17:39:08 arch sddm[608]: Auth: sddm-helper exited successfully
Jan 31 17:39:08 arch sddm[608]: Greeter stopped.
Jan 31 17:39:08 arch sddm[608]: Session started

Logout

Jan 31 17:41:49 arch sddm[608]: kwalletd5: Checking for pam module
Jan 31 17:41:49 arch sddm[608]: kwalletd5: Got pam-login param
Jan 31 17:41:49 arch sddm[608]: kwalletd5: Waiting for hash on 7-
Jan 31 17:41:49 arch sddm[608]: kwalletd5: waitingForEnvironment on: 3
Jan 31 17:41:49 arch sddm[608]: kwalletd5: client connected
Jan 31 17:41:49 arch sddm[608]: kwalletd5: client disconnected
Jan 31 17:41:49 arch sddm[608]: Auth: sddm-helper exited successfully
Jan 31 17:41:49 arch sddm[608]: Socket server stopping...
Jan 31 17:41:49 arch sddm[608]: Socket server stopped.
Jan 31 17:41:49 arch sddm[608]: Display server stopping...
Jan 31 17:41:50 arch sddm[608]: Display server stopped.
Jan 31 17:41:50 arch sddm[608]: Running display stop script  "/usr/share/sddm/scripts/Xstop"
Jan 31 17:41:50 arch sddm[608]: Removing display ":0" ...
Jan 31 17:41:50 arch sddm[608]: Adding new display on vt 1 ...
Jan 31 17:41:50 arch sddm[608]: Loading theme configuration from ""
Jan 31 17:41:50 arch sddm[608]: Display server starting...
Jan 31 17:41:50 arch sddm[608]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{a0b7ab7e-cda2-4d9d-bb74-67d31927549b} -background none -noreset -displayfd 18 -seat seat0 vt1
Jan 31 17:41:50 arch sddm[608]: Setting default cursor
Jan 31 17:41:50 arch sddm[608]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Jan 31 17:41:50 arch sddm[608]: Display server started.
Jan 31 17:41:50 arch sddm[608]: Socket server starting...
Jan 31 17:41:50 arch sddm[608]: Socket server started.
Jan 31 17:41:50 arch sddm[608]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Jan 31 17:41:50 arch sddm[608]: Greeter starting...
Jan 31 17:41:50 arch sddm[608]: Adding cookie to "/var/run/sddm/{a0b7ab7e-cda2-4d9d-bb74-67d31927549b}"
Jan 31 17:41:50 arch sddm-helper[1248]: [PAM] Starting...
Jan 31 17:41:50 arch sddm-helper[1248]: [PAM] Authenticating...
Jan 31 17:41:50 arch sddm-helper[1248]: [PAM] returning.
Jan 31 17:41:50 arch sddm-helper[1248]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Jan 31 17:41:50 arch sddm[608]: Greeter session started successfully
Jan 31 17:41:50 arch sddm[608]: Message received from greeter: Connect

Login attempt after logout

Jan 31 17:43:05 arch sddm[608]: Message received from greeter: Login
Jan 31 17:43:05 arch sddm[608]: Reading from "/usr/share/xsessions/plasma.desktop"
Jan 31 17:43:05 arch sddm[608]: Reading from "/usr/share/xsessions/plasma.desktop"
Jan 31 17:43:05 arch sddm[608]: Session "/usr/share/xsessions/plasma.desktop" selected, command: "/usr/bin/startkde"
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] Starting...
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] Authenticating...
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] Preparing to converse...
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] Conversation with 1 messages
Jan 31 17:43:05 arch sddm-helper[1272]: pam_kwallet5(sddm:auth): (null): pam_sm_authenticate
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] returning.
Jan 31 17:43:05 arch sddm[608]: Authenticated successfully
Jan 31 17:43:05 arch sddm-helper[1272]: [PAM] Ended.
Jan 31 17:43:05 arch sddm[608]: Auth: sddm-helper exited successfully
Jan 31 17:43:05 arch sddm[608]: Greeter stopping...
Jan 31 17:43:05 arch sddm[608]: Socket server stopping...
Jan 31 17:43:05 arch sddm[608]: Socket server stopped.
Jan 31 17:43:05 arch sddm[608]: Display server stopping...
Jan 31 17:43:06 arch sddm[608]: Display server stopped.
Jan 31 17:43:06 arch sddm[608]: Running display stop script  "/usr/share/sddm/scripts/Xstop"
Jan 31 17:43:06 arch sddm[608]: Removing display ":0" ...
Jan 31 17:43:06 arch sddm[608]: Adding new display on vt 1 ...
Jan 31 17:43:06 arch sddm[608]: Loading theme configuration from ""
Jan 31 17:43:06 arch sddm[608]: Display server starting...
Jan 31 17:43:06 arch sddm[608]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{4bc643e7-7ace-45bf-af66-5ab6bcd8799b} -background none -noreset -displayfd 21 -seat seat0 vt1
Jan 31 17:43:07 arch sddm[608]: Setting default cursor
Jan 31 17:43:07 arch sddm[608]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Jan 31 17:43:07 arch sddm[608]: Display server started.
Jan 31 17:43:07 arch sddm[608]: Socket server starting...
Jan 31 17:43:07 arch sddm[608]: Socket server started.
Jan 31 17:43:07 arch sddm[608]: Loading theme configuration from "/usr/share/sddm/themes/breeze/theme.conf"
Jan 31 17:43:07 arch sddm[608]: Greeter starting...
Jan 31 17:43:07 arch sddm[608]: Adding cookie to "/var/run/sddm/{4bc643e7-7ace-45bf-af66-5ab6bcd8799b}"
Jan 31 17:43:07 arch sddm[608]: Greeter stopping...
Jan 31 17:43:07 arch sddm[608]: QProcess: Destroyed while process ("/usr/lib/sddm/sddm-helper") is still running.
Jan 31 17:43:07 arch sddm-helper[1284]: [PAM] Starting...
Jan 31 17:43:07 arch sddm-helper[1284]: [PAM] Authenticating...
Jan 31 17:43:07 arch sddm-helper[1284]: [PAM] returning.
Jan 31 17:43:07 arch sddm-helper[1284]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Jan 31 17:43:07 arch sddm[608]: Greeter session started successfully
Jan 31 17:43:07 arch sddm[608]: Message received from greeter: Connect

I can see that it logged me out after it successfully logged me in, and it doesn't say anything else. Where should I look?

chrisdb

Member

From: Belgium

Registered: 2018-05-16

Posts: 155

Re: Issue with SDDM - I cannot login after I logout

Take a look at PAM debug
https://linux.die.net/man/8/pam_debug

Last edited by chrisdb (2019-02-01 19:07:15)

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