Comment 0 for bug 827579

Finally I found this bug!

Unity in my Ubuntu account was crashing, but reading other Forums (in italian) I found that If you create another account, Unity works fine, and he was right, the new account works perfect.
So I made test changing different configurations of Unity/GNOME (change size of icons, activate zoom, activate opacity on Unity panel and Dash, change fontsize, set a wallpaper, etc). But I finally found the bug.

If you delete the wallpaper file used on your session, when you try again to login, Unity/Compiz crashed. I can reproduce this bug everytime.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.8.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic-pae 3.0.1
Uname: Linux 3.0.0-8-generic-pae i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,imgpng,unitymtgrabhandles,vpswitch,move,gnomecompat,compiztoolbox,snap,regex,grid,zoom,mousepoll,place,session,animation,wall,fade,expo,ezoom,workarounds,scale,unityshell]
CompositorRunning: compiz
CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
Date: Tue Aug 16 13:58:03 2011
DistUpgraded: Fresh install
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus: vboxhost, 4.1.2, 3.0.0-8-generic-pae, i686: installed
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:04c5]
 ATI Technologies Inc NI Whistler [AMD Radeon HD 6600M Series] [1002:6741] (prog-if 00 [VGA controller])
   Subsystem: Dell Device [1028:04c5]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110730)
MachineType: Dell Inc. Dell System Vostro 3450
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-8-generic-pae root=UUID=a163d130-cfa4-4122-8f7c-27100ed73b3a ro quiet splash pcie_aspm=force vt.handoff=7
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/25/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A04
dmi.board.name: 0K8WHD
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.:bvrA04:bd03/25/2011:svnDellInc.:pnDellSystemVostro3450:pvr:rvnDellInc.:rn0K8WHD:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System Vostro 3450
dmi.sys.vendor: Dell Inc.
peripherals:
 /desktop/gnome/peripherals/mouse:
   cursor_theme = DMZ-White
version.compiz: compiz 1:0.9.5.0-0ubuntu5
version.libdrm2: libdrm2 2.4.26-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1