Maxime D., could you please ensure you have xdiagnose installed, and then execute at a terminal: apport-collect 1305045
As well, please ensure that you click the Yes button for attaching additional debugging information. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Description changed: - Probably same bug as this "invalid" one : https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1166411 - I followed the instructions mentioned in the last comment. - My XUbuntu told me there was a crash when I unlock my screen. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8 Uname: Linux 3.13.0-23-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.14.1-0ubuntu1 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Apr 9 14:41:42 2014 InstallationDate: Installed on 2014-04-04 (5 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326) SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1305045 Title: Xorg crashed with SIGABRT in amd_xs113_int10_x_inb() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1305045/+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