Desktop decorations are lost, no Unity bars

[Jalakas]

No window decorations and Unity bars.

ProblemType: Crash
DistroRelease: Ubuntu 13.04
Package: xserver-xorg-core 2:1.13.3-0ubuntu3
Uname: Linux 3.9.0-030900rc4-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.9.2-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
Date: Tue Mar 26 13:41:56 2013
DistUpgraded: 2013-02-24 07:16:42,127 DEBUG enabling apt cron job
DistroCodename: raring
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xorg
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:04d9]
InstallationDate: Installed on 2013-02-22 (31 days ago)
InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.1)
MachineType: Dell Inc. Dell System Vostro 3450
MarkForUpload: True
ProcCmdline: /usr/bin/X :1 -core -auth /var/run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.9.0-030900rc4-generic root=UUID=44dcfe69-c676-4fd9-820f-cc11d96452bb ro acpi_osi=Linux pcie_aspm=force i915.semaphores=1 i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1
Signal: 6
SourcePackage: xorg-server
UpgradeStatus: Upgraded to raring on 2013-02-24 (30 days ago)
UserGroups:

dmi.bios.date: 02/09/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A11
dmi.board.name: 0YW3P2
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA11:bd02/09/2012:svnDellInc.:pnDellSystemVostro3450:pvr:rvnDellInc.:rn0YW3P2:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System Vostro 3450
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.9~daily13.03.26-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.42+git20130211.20c5607b-0ubuntu0sarvatt
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.0~git20130301.58bd926d-0ubuntu0sarvatt
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.0~git20130301.58bd926d-0ubuntu0sarvatt
version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.5+git20130322.88b6b80c-0ubuntu0sarvatt
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A

[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 #1155902, 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.