URL: https://linuxfr.org/forums/linux-general/posts/mageia-4-login-impossible Title: [Mageia 4] Login impossible Authors: Sclarckone Date: 2014年03月14日T19:00:17+01:00 License: CC By-SA Tags: mageia, systemd, lightdm et xorg Score: 0 Salut les moules, J'utilise Mageia 4 depuis un mois environ et j'en suis plutôt content mais depuis une semaine je ne peux plus me loguer dans ma session Cinnamon, ce qui est plutôt fâcheux ! J'ai posté sur le forum de Mageia mais sans trop de succès jusqu'à présent... :-( Les symptômes sont les suivants : * le boot se passe bien jusqu'à arriver à l'écran de LightDM (que je ne devrais en fait pas voir car j'avais activé l'autologin) ; * je tape donc mon mot de passe et l’authentification semble réussir ; * un écran avec le logo Nvidia s'affiche (j'utilise le pilote proprio) ; * et là patatras, écran noir puis retour à l'écran de login. Si je devais essayer de deviner ce qui cloche, je dirais que le serveur X se vautre au moment où je me logue ?? Le log .xsessions-errors se finit par : ``` XIO: fatal IO error 4 (Interrupted system call) on X server ":0" after 4996 requests (4996 known processed) with 0 events remaining. ``` Et dans journalctl -b il y a les entrées suivantes concernant les sessions utilisateurs : ``` Mar 13 21:22:37 localhost systemd[1]: Starting User Manager for 500... Mar 13 21:22:37 localhost systemd[1]: Starting Session 1 of user sclarckone. Mar 13 21:22:37 localhost systemd-logind[961]: New session 1 of user sclarckone. Mar 13 21:22:37 localhost systemd-logind[961]: Linked /tmp/.X11-unix/X0 to /run/user/500/X11-display. Mar 13 21:22:37 localhost systemd[1389]: pam_tcb(systemd-user:session): Session opened for sclarckone by (uid=0) Mar 13 21:22:37 localhost systemd[1]: Started Session 1 of user sclarckone. Mar 13 21:22:37 localhost systemd[1389]: Failed to open private bus connection: Failed to connect to socket /run/user/500/dbus/user_bus_socket: No such file or directory Mar 13 21:22:37 localhost systemd[1]: Stopping Session 1 of user sclarckone. Mar 13 21:22:37 localhost systemd[1]: Stopped Session 1 of user sclarckone. Mar 13 21:22:37 localhost systemd[1389]: Starting Default. Mar 13 21:22:37 localhost systemd[1389]: Reached target Default. Mar 13 21:22:37 localhost systemd[1389]: Startup finished in 21ms. Mar 13 21:22:37 localhost systemd[1]: Started User Manager for 500. Mar 13 21:22:37 localhost systemd-logind[961]: Removed session 1. Mar 13 21:22:37 localhost systemd[1]: Stopping User Manager for 500... Mar 13 21:22:37 localhost lightdm[1385]: pam_tcb(lightdm-autologin:session): Session opened for sclarckone by sclarckone(uid=0) Mar 13 21:22:37 localhost systemd[1394]: pam_tcb(systemd-user:session): Session opened for sclarckone by (uid=0) Mar 13 21:22:37 localhost systemd[1395]: pam_tcb(systemd-user:session): Session closed for sclarckone Mar 13 21:22:37 localhost systemd[1389]: Stopping Default. Mar 13 21:22:37 localhost systemd[1389]: Stopped target Default. Mar 13 21:22:37 localhost systemd[1389]: Starting Shutdown. Mar 13 21:22:37 localhost systemd[1389]: Reached target Shutdown. Mar 13 21:22:37 localhost systemd[1389]: Starting Exit the Session... Mar 13 21:22:37 localhost systemd[1389]: Received SIGRTMIN+24 from PID 1397 (kill). Mar 13 21:22:37 localhost systemd[1]: Stopped User Manager for 500. Mar 13 21:22:37 localhost systemd[1]: Stopping user-500.slice. Mar 13 21:22:37 localhost systemd[1]: Removed slice user-500.slice. Mar 13 21:22:37 localhost systemd[1390]: pam_tcb(systemd-user:session): Session closed for sclarckone Mar 13 21:22:41 localhost systemd[1]: Starting user-488.slice. Mar 13 21:22:41 localhost systemd[1]: Created slice user-488.slice. Mar 13 21:22:41 localhost systemd[1]: Starting User Manager for 488... Mar 13 21:22:41 localhost systemd[1553]: pam_tcb(systemd-user:session): Session opened for lightdm by (uid=0) Mar 13 21:22:42 localhost systemd[1]: Starting Session c1 of user lightdm. Mar 13 21:22:42 localhost systemd[1]: Started Session c1 of user lightdm. Mar 13 21:22:42 localhost systemd-logind[961]: New session c1 of user lightdm. Mar 13 21:22:42 localhost systemd-logind[961]: Linked /tmp/.X11-unix/X0 to /run/user/488/X11-display. Mar 13 21:22:42 localhost systemd[1553]: Failed to open private bus connection: Failed to connect to socket /run/user/488/dbus/user_bus_socket: No such file or directory Mar 13 21:22:42 localhost systemd[1553]: Starting Default. Mar 13 21:22:42 localhost systemd[1553]: Reached target Default. Mar 13 21:22:42 localhost systemd[1553]: Startup finished in 15ms. Mar 13 21:22:42 localhost systemd[1]: Started User Manager for 488. Mar 13 21:22:42 localhost lightdm[1534]: pam_tcb(lightdm-greeter:session): Session opened for lightdm by (uid=0) Mar 13 21:22:42 localhost lightdm[1598]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "sclarckone" Mar 13 21:22:48 localhost lightdm[1598]: pam_tcb(lightdm:auth): Authentication passed for sclarckone from (uid=0) Mar 13 21:22:48 localhost lightdm[1534]: pam_tcb(lightdm-greeter:session): Session closed for lightdm Mar 13 21:22:48 localhost systemd-logind[961]: Removed session c1. Mar 13 21:22:48 localhost systemd[1]: Stopping User Manager for 488... Mar 13 21:22:48 localhost systemd[2677]: pam_tcb(systemd-user:session): Session opened for lightdm by (uid=0) Mar 13 21:22:48 localhost systemd[1553]: Stopping Default. Mar 13 21:22:48 localhost systemd[1553]: Stopped target Default. Mar 13 21:22:48 localhost systemd[1553]: Starting Shutdown. Mar 13 21:22:48 localhost systemd[1553]: Reached target Shutdown. Mar 13 21:22:48 localhost systemd[1553]: Starting Exit the Session... Mar 13 21:22:48 localhost systemd[1553]: Received SIGRTMIN+24 from PID 2679 (kill). Mar 13 21:22:48 localhost systemd[1]: Stopped User Manager for 488. Mar 13 21:22:48 localhost systemd[1]: Stopping user-488.slice. Mar 13 21:22:48 localhost systemd[1]: Removed slice user-488.slice. Mar 13 21:22:48 localhost systemd[1554]: pam_tcb(systemd-user:session): Session closed for lightdm Mar 13 21:22:48 localhost systemd[1]: Starting user-500.slice. Mar 13 21:22:48 localhost systemd[1]: Created slice user-500.slice. Mar 13 21:22:48 localhost systemd[1]: Starting User Manager for 500... Mar 13 21:22:48 localhost systemd[2682]: pam_tcb(systemd-user:session): Session opened for sclarckone by (uid=0) Mar 13 21:22:48 localhost systemd[1]: Starting Session 2 of user sclarckone. Mar 13 21:22:48 localhost systemd-logind[961]: New session 2 of user sclarckone. Mar 13 21:22:48 localhost systemd-logind[961]: Linked /tmp/.X11-unix/X0 to /run/user/500/X11-display. Mar 13 21:22:48 localhost systemd[2682]: Failed to open private bus connection: Failed to connect to socket /run/user/500/dbus/user_bus_socket: No such file or directory Mar 13 21:22:48 localhost systemd[1]: Started Session 2 of user sclarckone. Mar 13 21:22:48 localhost lightdm[1598]: pam_tcb(lightdm:session): Session opened for sclarckone by sclarckone(uid=0) Mar 13 21:22:48 localhost systemd[2682]: Starting Default. Mar 13 21:22:48 localhost systemd[2682]: Reached target Default. Mar 13 21:22:48 localhost systemd[2682]: Startup finished in 15ms. Mar 13 21:22:48 localhost systemd[1]: Started User Manager for 500. Mar 13 21:22:48 localhost systemd[1]: Stopping Session 2 of user sclarckone. Mar 13 21:22:48 localhost systemd[1]: Stopped Session 2 of user sclarckone. Mar 13 21:22:48 localhost systemd-logind[961]: Removed session 2. Mar 13 21:22:48 localhost systemd[1]: Stopping User Manager for 500... Mar 13 21:22:48 localhost systemd[2688]: pam_tcb(systemd-user:session): Session opened for sclarckone by (uid=0) Mar 13 21:22:48 localhost systemd[2689]: pam_tcb(systemd-user:session): Session closed for sclarckone Mar 13 21:22:48 localhost systemd[2682]: Stopping Default. Mar 13 21:22:48 localhost systemd[2682]: Stopped target Default. Mar 13 21:22:48 localhost systemd[2682]: Starting Shutdown. Mar 13 21:22:48 localhost systemd[2682]: Reached target Shutdown. Mar 13 21:22:48 localhost systemd[2682]: Starting Exit the Session... Mar 13 21:22:48 localhost systemd[2682]: Received SIGRTMIN+24 from PID 2691 (kill). Mar 13 21:22:48 localhost systemd[1]: Stopped User Manager for 500. Mar 13 21:22:48 localhost systemd[1]: Stopping user-500.slice. Mar 13 21:22:48 localhost systemd[1]: Removed slice user-500.slice. Mar 13 21:22:48 localhost systemd[2683]: pam_tcb(systemd-user:session): Session closed for sclarckone ar 13 21:22:52 localhost systemd[1]: Starting user-488.slice. Mar 13 21:22:52 localhost systemd[1]: Created slice user-488.slice. Mar 13 21:22:52 localhost systemd[1]: Starting User Manager for 488... Mar 13 21:22:52 localhost systemd[1]: Starting Session c2 of user lightdm. Mar 13 21:22:52 localhost systemd[2701]: pam_tcb(systemd-user:session): Session opened for lightdm by (uid=0) Mar 13 21:22:52 localhost systemd-logind[961]: New session c2 of user lightdm. Mar 13 21:22:52 localhost systemd-logind[961]: Linked /tmp/.X11-unix/X0 to /run/user/488/X11-display. Mar 13 21:22:52 localhost systemd[1]: Started Session c2 of user lightdm. Mar 13 21:22:52 localhost systemd[2701]: Failed to open private bus connection: Failed to connect to socket /run/user/488/dbus/user_bus_socket: No such file or directory Mar 13 21:22:52 localhost lightdm[2699]: pam_tcb(lightdm-greeter:session): Session opened for lightdm by (uid=0) Mar 13 21:22:52 localhost systemd[2701]: Starting Default. Mar 13 21:22:52 localhost systemd[2701]: Reached target Default. Mar 13 21:22:52 localhost systemd[2701]: Startup finished in 9ms. Mar 13 21:22:52 localhost systemd[1]: Started User Manager for 488. Mar 13 21:22:52 localhost lightdm[2709]: pam_succeed_if(lightdm:auth): requirement "user ingroup nopasswdlogin" not met by user "sclarckone" Mar 13 21:26:18 localhost systemd[1]: Starting Getty on tty2... Mar 13 21:26:18 localhost systemd[1]: Started Getty on tty2. Mar 13 21:26:20 localhost acpid[977]: client 2694[0:0] has disconnected Mar 13 21:26:20 localhost acpid[977]: client 2694[0:0] has disconnected Mar 13 21:26:22 localhost login[2725]: pam_tcb(login:auth): Authentication passed for root from LOGIN(uid=0) Mar 13 21:26:22 localhost systemd[1]: Starting user-0.slice. Mar 13 21:26:22 localhost systemd[1]: Created slice user-0.slice. Mar 13 21:26:22 localhost systemd[1]: Starting User Manager for 0... Mar 13 21:26:22 localhost systemd[1]: Starting Session 3 of user root. Mar 13 21:26:22 localhost systemd-logind[961]: New session 3 of user root. Mar 13 21:26:22 localhost systemd[1]: Started Session 3 of user root. Mar 13 21:26:22 localhost systemd[2726]: pam_tcb(systemd-user:session): Session opened for root by (uid=0) Mar 13 21:26:22 localhost systemd[2726]: Failed to open private bus connection: Failed to connect to socket /run/user/0/dbus/user_bus_socket: No such file or directory Mar 13 21:26:22 localhost login[2725]: pam_tcb(login:session): Session opened for root by root(uid=0) Mar 13 21:26:22 localhost login[2725]: ROOT LOGIN ON tty2 Mar 13 21:26:22 localhost systemd[2726]: Starting Default. Mar 13 21:26:22 localhost systemd[2726]: Reached target Default. Mar 13 21:26:22 localhost systemd[2726]: Startup finished in 7ms. ``` D'une, je ne comprends pas trop pourquoi la session de l'utilisateur est ouverte plusieurs fois alors que je n'ai essayé de me loguer qu'une seule fois -- des tentatives automatiques de la part de systemd ? De deux, le dernier essai (réussi) est celui que je fais pour le loguer en root sur tty2 ; la seule différence que je vois c'est que dans les tentatives précédentes pour démarre la sessions de l'utilisateur sclarckone, le target Default (apparemment les targets de systemd sont similaires aux runlevels de SysV) est arrêté. Bref, je nage...des idées ? Merci d'avance !

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