Ruilu Wang, thank you for reporting this and helping make Ubuntu better. However, your crash report is manually attached. Please follow these instructions to have apport report a new bug about your crash that can be dealt with by the automatic retracer. First, execute at a terminal: cd /var/crash && sudo rm * ; sudo apt-get update && sudo apt-get -y upgrade && sudo service apport start force_start=1
If you are running the Ubuntu Stable Release you might need to enable apport in /etc/default/apport and restart. Now reproduce the crash, then open your file manager, navigate to your /var/crash directory and open the crash report you wish to submit. If this fails you will have to open a terminal and file your report with 'ubuntu-bug /var/crash/_my_crash_report.crash' where _my_crash_report.crash is the crash you would like to report. If you get an error that you aren't allowed to access this report you will have to file it with 'sudo ubuntu-bug /var/crash/_my_crash_report.crash'. If you run the command against the crash report and a window pops up asking you to report this, but then never opens a new report, you would be affected by https://bugs.launchpad.net/ubuntu/+source/apport/+bug/994921 . In order to WORKAROUND this, one would need to open the following file via a command line: sudo nano /etc/apport/crashdb.conf and comment out the line: 'problem_types': ['Bug', 'Package'], by changing it to: # 'problem_types': ['Bug', 'Package'], Save, close, and try to file the crash report again via: ubuntu-bug /var/crash/_my_crash_report.crash I'm closing this bug report since the process outlined above will automatically open a new bug report which can then dealt with more efficiently. Please feel free to subscribe me to this new report. Also, please do not attach your crash report manually to this report and reopen it. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Changed in: xorg (Ubuntu) Status: Incomplete => Invalid ** Attachment removed: "_usr_bin_Xorg.0.crash" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1333079/+attachment/4137188/+files/_usr_bin_Xorg.0.crash -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1333079 Title: Crash on locking screen on closing laptop lid - lightdm Status in xorg package in Ubuntu: Invalid Bug description: Crash report header: ProblemType: Crash Architecture: amd64 CrashCounter: 1 Date: Mon Jun 23 03:53:12 2014 DistroRelease: Ubuntu 14.04 ExecutablePath: /usr/bin/Xorg ExecutableTimestamp: 1397655517 ProcCmdline: /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch ProcCwd: /etc/X11 ProcEnviron: ProcMaps: .... /usr/bin/X -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch on command line gives same issue. ctrl-alt-delete sometimes causes reboot, otherwise i need to remove a/c and battery problem is new following 14.04 upgrade (lightdm is new to 14.04) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 Date: Mon Jun 23 05:04:13 2014 InstallationDate: Installed on 2014-02-15 (127 days ago) InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016) ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash SourcePackage: xorg UpgradeStatus: Upgraded to trusty on 2014-06-22 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1333079/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

