Xorg crashed with SIGABRT in OsAbort()

[Wolfgang]

Bug Report starts after upgrading from 14.04 to 14.10

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: xserver-xorg-core 2:1.16.0-1ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-18.25-generic 3.16.3
Uname: Linux 3.16.0-18-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CrashCounter: 1
Date: Sun Sep 28 09:42:06 2014
DistUpgraded: 2014-09-24 14:18:34,851 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
DkmsStatus:
 fwts-efi-runtime-dkms, 14.09.00, 3.13.0-37-generic, x86_64: installed
 fwts-efi-runtime-dkms, 14.09.00, 3.16.0-17-generic, x86_64: installed
 fwts-efi-runtime-dkms, 14.09.00, 3.16.0-18-generic, x86_64: installed
 i915-3.15-3.13, 0.01, 3.13.0-37-generic, x86_64: installed
ExecutablePath: /usr/bin/Xorg
ExecutableTimestamp: 1410354735
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Acer Incorporated [ALI] Device [1025:0775]
InstallationDate: Installed on 2014-07-10 (79 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Acer Aspire E1-572
ProcCmdline: /usr/bin/X -core :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
ProcCwd: /etc/X11
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-18-generic root=UUID=a3713735-84f4-4757-980a-e683acfdceb5 ro rootflags=sync splash quiet intel_pstate=enable nmi_watchdog=0 acpi_backlight=vendor vt.handoff=7
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 OsAbort () at ../../os/utils.c:1361
 AbortServer () at ../../os/log.c:786
 FatalError (f=f@entry=0x7ffbd07e3116 "no screens found") at ../../os/log.c:924
 dix_main (argc=11, argv=0x7fffeac53458, envp=<optimized out>) at ../../dix/main.c:205
 __libc_start_main (main=0x7ffbd0660680 <main>, argc=11, argv=0x7fffeac53458, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffeac53448) at libc-start.c:287
Title: Xorg crashed with SIGABRT in OsAbort()
UpgradeStatus: Upgraded to utopic on 2014-09-24 (3 days ago)
UserGroups:

dmi.bios.date: 01/15/2014
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V2.14
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: EA50_HW
dmi.board.vendor: Acer
dmi.board.version: V2.14
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.14:bd01/15/2014:svnAcer:pnAspireE1-572:pvrV2.14:rvnAcer:rnEA50_HW:rvrV2.14:cvnAcer:ct10:cvrChassisVersion:
dmi.product.name: Aspire E1-572
dmi.product.version: V2.14
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.6-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.6-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Sun Sep 28 11:42:38 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 18412
 vendor AUO
xserver.version: 2:1.16.0-1ubuntu1

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #1338492, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.