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#1 2017-10-01 01:09:55

mothbe
Member
Registered: 2017-09-20
Posts: 3

crash Xorg during login

After every first login to the system kscreen_backend and Xorg crashes. During next login I do not have such issue.
The same happen after next boot or reboot PC.

Oct 01 02:46:46 darkstar kscreen_backend_launcher[18754]: QXcbConnection: Could not connect to display :0

I use SDDM and Plasma5.

I do not have such issue if I use Awesome WM or Weston during log in.


Oct 01 02:46:46 darkstar dbus-daemon[18693]: Successfully activated service 'org.kde.kglobalaccel'
Oct 01 02:46:46 darkstar ksmserver[18743]: Qt: Session management error: networkIdsList argument is NULL
Oct 01 02:46:46 darkstar ksmserver[18743]: Configuring Lock Action
Oct 01 02:46:46 darkstar kdeinit5[18726]: detected kglobalaccel restarting, re-registering all shortcut keys
Oct 01 02:46:46 darkstar dbus-daemon[18693]: Activating service name='org.kde.KScreen'
Oct 01 02:46:46 darkstar kscreen_backend_launcher[18754]: QXcbConnection: Could not connect to display :0
Oct 01 02:46:46 darkstar systemd[1]: Created slice system-systemd\x2dcoredump.slice.
Oct 01 02:46:46 darkstar systemd[1]: Started Process Core Dump (PID 18755/UID 0).
Oct 01 02:46:46 darkstar systemd[1]: Started Process Core Dump (PID 18759/UID 0).
Oct 01 02:46:46 darkstar dbus-daemon[18693]: Activated service 'org.kde.KScreen' failed: Process org.kde.KScreen received signal 6
Oct 01 02:46:46 darkstar kdeinit5[18726]: kscreen: Failed to request backend: "org.freedesktop.DBus.Error.Spawn.ChildSignaled" : "Process org.kde.KScreen received signal 6"
Oct 01 02:46:46 darkstar systemd-coredump[18758]: Process 18754 (kscreen_backend) of user 1001 dumped core.
                                                  
                                                  Stack trace of thread 18754:
                                                  #0  0x00007fd0d91528a0 raise (libc.so.6)
                                                  #1  0x00007fd0d9153f09 abort (libc.so.6)
                                                  #2  0x00007fd0d98f2988 _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5)
                                                  #3  0x00007fd0d2254a8e _ZN14QXcbConnectionC1EP19QXcbNativeInterfacebjPKc (libQt5XcbQpa.so.5)
                                                  #4  0x00007fd0d2257acc _ZN15QXcbIntegrationC2ERK11QStringListRiPPc (libQt5XcbQpa.so.5)
                                                  #5  0x00007fd0d251d19e n/a (libqxcb.so)
                                                  #6  0x00007fd0da032b60 _ZN27QPlatformIntegrationFactory6createERK7QStringRK11QStringListRiPPcS2_ (libQt5Gui.so.5)
                                                  #7  0x00007fd0da043458 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5)
                                                  #8  0x00007fd0da043f8e _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5)
                                                  #9  0x00007fd0d9af2df5 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5)
                                                  #10 0x00007fd0da045a70 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5)
                                                  #11 0x00007fd0da0467d8 _ZN15QGuiApplicationC1ERiPPci (libQt5Gui.so.5)
                                                  #12 0x000055c7f9f32014 n/a (kscreen_backend_launcher)
                                                  #13 0x00007fd0d913ef6a __libc_start_main (libc.so.6)
                                                  #14 0x000055c7f9f321ea _start (kscreen_backend_launcher)
Oct 01 02:46:46 darkstar ksmserver[18743]: The X11 connection broke: I/O error (code 1)
Oct 01 02:46:46 darkstar kglobalaccel5[18745]: The X11 connection broke (error 1). Did the X11 server die?
Oct 01 02:46:46 darkstar kaccess[18747]: The X11 connection broke: I/O error (code 1)
Oct 01 02:46:46 darkstar kdeinit5[18726]: The X11 connection broke (error 1). Did the X11 server die?
Oct 01 02:46:46 darkstar kdeinit5[18728]: The X11 connection broke (error 1). Did the X11 server die?
Oct 01 02:46:46 darkstar sddm-helper[18674]: [PAM] Closing session
Oct 01 02:46:46 darkstar sddm-helper[18674]: [PAM] Ended.
Oct 01 02:46:46 darkstar sddm-helper[18674]: pam_unix(sddm:session): session closed for user red
Oct 01 02:46:46 darkstar sddm[683]: Auth: sddm-helper exited successfully
Oct 01 02:46:46 darkstar sddm-helper[18674]: pam_kwallet5(sddm:session): pam_kwallet5: pam_sm_close_session
Oct 01 02:46:46 darkstar sddm[683]: Socket server stopping...
Oct 01 02:46:46 darkstar sddm-helper[18674]: pam_kwallet5(sddm:setcred): pam_kwallet5: pam_sm_setcred
Oct 01 02:46:46 darkstar sddm[683]: Socket server stopped.
Oct 01 02:46:46 darkstar sddm[683]: Display server stopping...
Oct 01 02:46:46 darkstar systemd-logind[503]: Removed session c2.
Oct 01 02:46:46 darkstar systemd[1]: Stopping User Manager for UID 1001...
Oct 01 02:46:46 darkstar systemd[18676]: Stopping D-Bus User Message Bus...
Oct 01 02:46:46 darkstar systemd[18676]: Stopped target Default.
Oct 01 02:46:46 darkstar systemd[18676]: Stopped D-Bus User Message Bus.
Oct 01 02:46:46 darkstar systemd[18676]: Stopped target Basic System.
Oct 01 02:46:46 darkstar systemd[18676]: Stopped target Sockets.
Oct 01 02:46:46 darkstar systemd[18676]: Closed GnuPG cryptographic agent (ssh-agent emulation).
Oct 01 02:46:46 darkstar systemd[18676]: Closed GnuPG cryptographic agent and passphrase cache (restricted).
Oct 01 02:46:46 darkstar systemd[18676]: Closed GnuPG network certificate management daemon.
Oct 01 02:46:46 darkstar systemd[18676]: Closed GnuPG cryptographic agent and passphrase cache (access for web browsers).
Oct 01 02:46:46 darkstar systemd[18676]: Closed Sound System.
Oct 01 02:46:46 darkstar systemd[18676]: Closed GnuPG cryptographic agent and passphrase cache.
Oct 01 02:46:46 darkstar systemd[18676]: Stopped target Paths.
Oct 01 02:46:46 darkstar systemd[18676]: Stopped target Timers.
Oct 01 02:46:46 darkstar systemd[18676]: Closed D-Bus User Message Bus Socket.
Oct 01 02:46:46 darkstar systemd[18676]: Reached target Shutdown.
Oct 01 02:46:46 darkstar systemd[18676]: Starting Exit the Session...
Oct 01 02:46:46 darkstar systemd[18676]: Received SIGRTMIN+24 from PID 18775 (kill).
Oct 01 02:46:46 darkstar systemd[18677]: pam_unix(systemd-user:session): session closed for user red
Oct 01 02:46:46 darkstar systemd[1]: Stopped User Manager for UID 1001.
Oct 01 02:46:46 darkstar systemd[1]: Removed slice User Slice of red.
Oct 01 02:46:46 darkstar sddm[683]: Display server stopped.
Oct 01 02:46:46 darkstar sddm[683]: Running display stop script  "/usr/share/sddm/scripts/Xstop"
Oct 01 02:46:46 darkstar sddm[683]: Removing display ":0" ...
Oct 01 02:46:46 darkstar sddm[683]: Adding new display on vt 7 ...
Oct 01 02:46:46 darkstar sddm[683]: Display server starting...
Oct 01 02:46:46 darkstar sddm[683]: Running: /usr/bin/X -nolisten tcp -auth /var/run/sddm/{1a5ba3fb-7745-4b9d-9303-00b84ee001b8} -background none -noreset -displayfd 19 vt7
Oct 01 02:46:46 darkstar systemd-coredump[18760]: Process 1069 (Xorg) of user 0 dumped core.
                                                  
                                                  Stack trace of thread 1069:
                                                  #0  0x00007f216f2018a0 raise (libc.so.6)
                                                  #1  0x00007f216f202f09 abort (libc.so.6)
                                                  #2  0x00005603e1d02e3e OsAbort (Xorg)
                                                  #3  0x00005603e1bde534 ddxGiveUp (Xorg)
                                                  #4  0x00005603e1d08932 n/a (Xorg)
                                                  #5  0x00005603e1d09775 FatalError (Xorg)
                                                  #6  0x00005603e1cffe7e n/a (Xorg)
                                                  #7  0x00007f216f595da0 __restore_rt (libpthread.so.0)
                                                  #8  0x00005603e1cf93d6 TimerSet (Xorg)
                                                  #9  0x00005603e1cf9b17 SetScreenSaverTimer (Xorg)
                                                  #10 0x00005603e1b98ed7 n/a (Xorg)
                                                  #11 0x00005603e1b9a188 n/a (Xorg)
                                                  #12 0x00005603e1b9e1b0 n/a (Xorg)
                                                  #13 0x00007f216f1edf6a __libc_start_main (libc.so.6)
                                                  #14 0x00005603e1b87e9a _start (Xorg)
                                                  
                                                  Stack trace of thread 1578:
                                                  #0  0x00007f216f2c3326 epoll_pwait (libc.so.6)
                                                  #1  0x00005603e1d008b7 n/a (Xorg)
                                                  #2  0x00005603e1cfe05e n/a (Xorg)
                                                  #3  0x00007f216f58b08a start_thread (libpthread.so.0)
                                                  #4  0x00007f216f2c31bf __clone (libc.so.6)
Oct 01 02:46:47 darkstar sddm[683]: Setting default cursor
Oct 01 02:46:47 darkstar sddm[683]: Running display setup script  "/usr/share/sddm/scripts/Xsetup"
Oct 01 02:46:47 darkstar sddm[683]: Display server started.
Oct 01 02:46:47 darkstar sddm[683]: Socket server starting...
Oct 01 02:46:47 darkstar sddm[683]: Socket server started.
Oct 01 02:46:47 darkstar sddm[683]: Greeter starting...
Oct 01 02:46:47 darkstar sddm[683]: Adding cookie to "/var/run/sddm/{1a5ba3fb-7745-4b9d-9303-00b84ee001b8}"
Oct 01 02:46:47 darkstar sddm-helper[18791]: [PAM] Starting...
Oct 01 02:46:47 darkstar sddm-helper[18791]: [PAM] Authenticating...
Oct 01 02:46:47 darkstar sddm-helper[18791]: [PAM] returning.
Oct 01 02:46:47 darkstar sddm-helper[18791]: pam_unix(sddm-greeter:session): session opened for user sddm by (uid=0)
Oct 01 02:46:47 darkstar systemd[1]: Created slice User Slice of sddm.
Oct 01 02:46:47 darkstar systemd[1]: Starting User Manager for UID 619...
Oct 01 02:46:47 darkstar systemd[1]: Started Session c3 of user sddm.
Oct 01 02:46:47 darkstar systemd[18793]: pam_unix(systemd-user:session): session opened for user sddm by (uid=0)
Oct 01 02:46:47 darkstar systemd-logind[503]: New session c3 of user sddm.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on Sound System.
Oct 01 02:46:47 darkstar systemd[18793]: Reached target Timers.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on GnuPG network certificate management daemon.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Oct 01 02:46:47 darkstar systemd[18793]: Listening on GnuPG cryptographic agent and passphrase cache.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Oct 01 02:46:47 darkstar systemd[18793]: Reached target Paths.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Oct 01 02:46:47 darkstar systemd[18793]: Starting D-Bus User Message Bus Socket.
Oct 01 02:46:47 darkstar systemd[18793]: Listening on D-Bus User Message Bus Socket.
Oct 01 02:46:47 darkstar systemd[18793]: Reached target Sockets.
Oct 01 02:46:47 darkstar systemd[18793]: Reached target Basic System.

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#2 2017-10-01 08:07:37

seth
Member
Registered: 2012-09-03
Posts: 49,981

Re: crash Xorg during login

The X11 crash in the posted log occurs *after* kscreen_backend et al. complain a broken connection to the server - please provide more log context.
Just to be sure:

cat /etc/hostname

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