Black screen and only pointer at startup

[legaliz_me]

After updating, I get a black screen on startup, my pointer and multiple "Report a problem" box. Checking apport.log it seems that unity-panel-service is crashing all the time.

in syslog I got those segfaults :

[ 335.294203] bamfdaemon[9462]: segfault at 7f89e0a5a254 ip 00007f89a8ae1b7a sp 00007fff9f25a108 error 4 in libc-2.19.so[7f89a8a49000+1bc000]
[ 343.121528] unity-panel-ser[10433]: segfault at 7ff2dd493712 ip 00007ff20b065df2 sp 00007fffb733b398 error 4 in libc-2.19.so[7ff20afcd000+1bc000]

which concord with apport.log so it might be the problem. Anybody else experiencing this?

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity-services 7.2.0+14.04.20140414.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
Date: Thu Apr 17 01:07:00 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
 virtualbox, 4.3.10, 3.13.0-23-generic, x86_64: installed
 virtualbox, 4.3.10, 3.13.0-24-generic, x86_64: installed
GraphicsCard:
 Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:220d]
 NVIDIA Corporation GK208M [GeForce GT 730M] [10de:1290] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:220d]
InstallationDate: Installed on 2014-03-26 (21 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140320)
MachineType: LENOVO 20AQCTO1WW
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=d2b432e3-5760-4ca4-bd44-722994373b4d ro quiet splash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/12/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: GJET64WW (2.14 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20AQCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: 0B98405 STD
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGJET64WW(2.14):bd11/12/2013:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20AQCTO1WW
dmi.product.version: ThinkPad T440s
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2
xserver.bootTime: Thu Apr 17 00:43:26 2014
xserver.configfile: default
xserver.errors:
 Failed to load module "nvidia" (module does not exist, 0)
 Failed to load module "nvidia" (module does not exist, 0)
 NOUVEAU(G0): Error creating GPU channel: -19
 NOUVEAU(G0): Error initialising acceleration. Falling back to NoAccel
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 4669
 vendor AUO
xserver.version: 2:1.15.1-0ubuntu2

[legaliz_me (r3m1-benoit)]

Syslog containg the segfaults I presume or the problem

[Andrea Azzarone (azzar1)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix. These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes. Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag “desktop-bugscrub-reopen”. See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.