Public bug reported: Xorg (xserver-xorg 1:7.7+1ubuntu8) crashed on an Ubuntu MATE (Utopic) amd64 system. Apport informed me of the crash when I logged in. I had just logged out and back in.
At the time I was using this system to verify the correct behavior of pam_env.so against another system on which it is not working. I had set unimportant environment variables (FOO and BAR) in ~/.pam_environment, changed them, and removed the file (which was otherwise empty). I did this across a few graphical sessions, all within a few minutes of one another. I suspect that is not what triggered this crash but I'm not sure. Recently I have some kernel messages which may or may not be related to whatever triggered this crash: [ 853.112643] systemd-logind[1038]: New session c10 of user lightdm. [ 858.538808] init: tty1 main process ended, respawning [ 858.554498] systemd-logind[1038]: Failed to abandon scope session-c2.scope [ 858.554583] systemd-logind[1038]: Failed to abandon session scope: No such interface 'org.freedesktop.systemd1.Scope' on object at path /org/freedesktop/systemd1/unit/session_2dc2_2escope [ 1118.816570] systemd-logind[1038]: Failed to abandon scope session-c10.scope [ 1118.816582] systemd-logind[1038]: Failed to abandon session scope: No such interface 'org.freedesktop.systemd1.Scope' on object at path /org/freedesktop/systemd1/unit/session_2dc10_2escope [ 1118.826320] systemd-logind[1038]: New session c11 of user ek. [ 1689.808829] audit: type=1400 audit(1409798550.085:26): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=6369 comm="apparmor_parser" [ 1689.808841] audit: type=1400 audit(1409798550.085:27): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=6369 comm="apparmor_parser" I've attached the full output of 'dmesg' (dmesg.txt). ProblemType: Crash DistroRelease: Ubuntu 14.10 Package: xserver-xorg-core 2:1.15.1-0ubuntu9 ProcVersionSignature: Ubuntu 3.16.0-12.18-generic 3.16.1 Uname: Linux 3.16.0-12-generic x86_64 ApportVersion: 2.14.7-0ubuntu1 Architecture: amd64 Date: Wed Sep 3 22:28:32 2014 ExecutablePath: /usr/bin/Xorg InstallationDate: Installed on 2014-08-19 (15 days ago) InstallationMedia: Ubuntu MATE 14.10 "Utopic Unicorn" - Alpha amd64 (20140731) ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch ProcEnviron: Signal: 6 SourcePackage: xorg-server UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: ** Affects: xorg-server (Ubuntu) Importance: Medium Status: New ** Tags: amd64 apport-crash utopic ** Attachment added: "output of dmesg" https://bugs.launchpad.net/bugs/1365232/+attachment/4194916/+files/dmesg.txt ** Information type changed from Private to Public -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1365232 Title: Xorg crashed (logging out and back in) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1365232/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp