I don't think this is a duplicate, anyway not one with the same cause. This started occurring after the upgrade to 15.10 beta; it wasn't an issue on 15.04.
Additionally, gdm does not even start / show the login prompt, while the original post clearly states that the user logged in first. ** This bug is no longer a duplicate of bug 1237904 Xorg crashed with SIGABRT in OsAbort() -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1502518 Title: Xorg crashed with SIGABRT in OsAbort() Status in xorg-server package in Ubuntu: New Bug description: Upgraded from 15.04 to 15.10 using update-manager -d. I'm running GNOME Shell, and as such was using gdm. gdm will immediately crash X before showing the login prompt. Using dpkg-reconfigure gdm I was able to switch to lightdm, which works. Hence the problem seems to lie in gdm or the xorg/gdm combo. ProblemType: Crash DistroRelease: Ubuntu 15.10 Package: xserver-xorg-core 2:1.17.2-1ubuntu9 ProcVersionSignature: Ubuntu 4.2.0-12.14-generic 4.2.1 Uname: Linux 4.2.0-12-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.19-0ubuntu1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: GNOME Date: Sat Oct 3 23:47:58 2015 DistUpgraded: 2015-10-03 23:44:57,615 DEBUG enabling apt cron job DistroCodename: wily DistroVariant: ubuntu ExecutablePath: /usr/bin/Xorg ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Acer Incorporated [ALI] Device [1025:0743] InstallationDate: Installed on 2013-05-12 (874 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: Acer V5-171 ProcCmdline: /usr/bin/X vt7 -displayfd 3 -auth /run/user/116/gdm/Xauthority -nolisten tcp -background none -noreset -keeptty -verbose 3 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-12-generic root=UUID=561b2fd6-3a7a-49b8-ba4d-e2eadfc4cb26 ro quiet splash acpi_osi=Linux intel_pstate=enable vt.handoff=7 Signal: 6 SourcePackage: xorg-server StacktraceTop: OsAbort () FatalError () ?? () xf86CloseConsole () ddxGiveUp () Title: Xorg crashed with SIGABRT in OsAbort() UpgradeStatus: Upgraded to wily on 2015-10-03 (0 days ago) UserGroups: dmi.bios.date: 03/08/2013 dmi.bios.vendor: Acer dmi.bios.version: V2.15 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: Mimic dmi.board.vendor: Acer dmi.board.version: Type2 - Board Version dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V2.15 dmi.modalias: dmi:bvnAcer:bvrV2.15:bd03/08/2013:svnAcer:pnV5-171:pvrV2.15:rvnAcer:rnMimic:rvrType2-BoardVersion:cvnAcer:ct10:cvrV2.15: dmi.product.name: V5-171 dmi.product.version: V2.15 dmi.sys.vendor: Acer version.compiz: compiz 1:0.9.12.2+15.10.20150908-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.0-1ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.0-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Sat Oct 3 23:53:56 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 12892 vendor AUO xserver.version: 2:1.17.2-1ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1502518/+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
