apport information ** Tags added: apport-collected trusty
** Description changed: System: Ubuntu 14.04, running cinnamon, on a Dell M3800. The bug happens randomly and logs off the user, who loses everything in the current session. It happens mostly when a new window is openned, especially terminals (but not only). > cat /proc/version_signature Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11 The same happens with the latest 3.16.0-43 kernel. Here's what I found in the Xorg.0.log.old file: [ 1063.253] (EE) Backtrace: [ 1063.254] (EE) 0: /usr/bin/X (xorg_backtrace+0x48) [0x7fe8e43aaed8] [ 1063.254] (EE) 1: /usr/bin/X (0x7fe8e4206000+0x1a8f19) [0x7fe8e43aef19] [ 1063.254] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7fe8e2385000+0x36d40) [0x7fe8e23bbd40] [ 1063.254] (EE) 3: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fe8de18b000+0x258f9) [0x7fe8de1b08f9] [ 1063.254] (EE) 4: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fe8de18b000+0x26d7c) [0x7fe8de1b1d7c] [ 1063.254] (EE) 5: /usr/lib/xorg/modules/drivers/intel_drv.so (0x7fe8de18b000+0xf4f4f) [0x7fe8de27ff4f] [ 1063.254] (EE) 6: /usr/bin/X (0x7fe8e4206000+0x1755bd) [0x7fe8e437b5bd] [ 1063.254] (EE) 7: /usr/bin/X (0x7fe8e4206000+0x176397) [0x7fe8e437c397] [ 1063.255] (EE) 8: /usr/bin/X (DRI2GetBuffersWithFormat+0x10) [0x7fe8e437c770] [ 1063.255] (EE) 9: /usr/bin/X (0x7fe8e4206000+0x178499) [0x7fe8e437e499] [ 1063.255] (EE) 10: /usr/bin/X (0x7fe8e4206000+0x5369e) [0x7fe8e425969e] [ 1063.255] (EE) 11: /usr/bin/X (0x7fe8e4206000+0x574ea) [0x7fe8e425d4ea] [ 1063.255] (EE) 12: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf5) [0x7fe8e23a6ec5] [ 1063.255] (EE) 13: /usr/bin/X (0x7fe8e4206000+0x42a5e) [0x7fe8e4248a5e] [ 1063.255] (EE) [ 1063.255] (EE) Bus error at address 0x7fe890108000 + --- + ApportVersion: 2.14.1-0ubuntu3.11 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/controlC1: csoler 7078 F.... pulseaudio + /dev/snd/controlC0: csoler 7078 F.... pulseaudio + DistroRelease: Ubuntu 14.04 + HibernationDevice: RESUME=/dev/mapper/swap + InstallationDate: Installed on 2015-06-18 (19 days ago) + InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) + MachineType: Dell Inc. Dell Precision M3800 + Package: linux (not installed) + ProcFB: 0 inteldrmfb + ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.16.0-41-generic root=UUID=ed58d38e-680c-4454-863d-9c8e4698082c ro quiet splash + ProcVersionSignature: Ubuntu 3.16.0-41.57~14.04.1-generic 3.16.7-ckt11 + PulseList: + Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied + No PulseAudio daemon running, or not running as session daemon. + RelatedPackageVersions: + linux-restricted-modules-3.16.0-41-generic N/A + linux-backports-modules-3.16.0-41-generic N/A + linux-firmware 1.127.12 + Tags: trusty + Uname: Linux 3.16.0-41-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 01/08/2015 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: A09 + dmi.board.name: Dell Precision M3800 + dmi.board.vendor: Dell Inc. + dmi.board.version: A09 + dmi.chassis.type: 8 + dmi.chassis.vendor: Dell Inc. + dmi.chassis.version: Not Specified + dmi.modalias: dmi:bvnDellInc.:bvrA09:bd01/08/2015:svnDellInc.:pnDellPrecisionM3800:pvrA09:rvnDellInc.:rnDellPrecisionM3800:rvrA09:cvnDellInc.:ct8:cvrNotSpecified: + dmi.product.name: Dell Precision M3800 + dmi.product.version: A09 + dmi.sys.vendor: Dell Inc. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1472471/+attachment/4426343/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1472471 Title: XServer crash logs the user off randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1472471/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
