Unity-menu, top-panel and "frames" of windows disappeared and never came back.

[Jostein]

It seems like the window manager (or the window system, I'll admit I haven't quite understood the distinction yet) crashed, but I don't really know what happened. The windows were still showing, but the Unity-menu, the top-panel, and all the "frames" of the windows disappeared. Alt+F4 didn't work to close programs, but I managed to close Chromium and Eclipse using File->Exit. This has actually happened before, but then everything came back after a few seconds - so I don't know if it's related. I switched to terminal with Ctrl+Alt+1 and reported this bug with apport-bug. I hope there's any useful debugging information in the logs I submitted.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: xorg 1:7.6+7ubuntu7
ProcVersionSignature: Ubuntu 3.0.0-12.19-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 280.13 Wed Jul 27 16:53:56 PDT 2011
 GCC version: gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)
ApportVersion: 1.23-0ubuntu2
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,resize,place,gnomecompat,snap,vpswitch,compiztoolbox,mousepoll,move,regex,imgpng,unitymtgrabhandles,session,grid,wall,animation,fade,workarounds,expo,ezoom,scale,unityshell]
Date: Wed Oct 12 14:19:31 2011
DistUpgraded: Log time: 2011-09-30 12:10:00.736870
DistroCodename: oneiric
DistroVariant: ubuntu
DkmsStatus: nvidia-current, 280.13, 3.0.0-12-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GpuHangFrequency: Once a week
GpuHangReproducibility: Seems to happen randomly
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 nVidia Corporation GF108 [Quadro 1000M] [10de:0dfa] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:1631]
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110920.5)
JockeyStatus:
 xorg:nvidia_current - NVIDIA aksellerert grafikkdriver (Merkebeskyttet, Aktiv, I bruk)
 xorg:nvidia_current_updates - NVIDIA accelerated graphics driver (post-release updates) (Merkebeskyttet, Deaktivert, Ikke i bruk)
MachineType: Hewlett-Packard HP EliteBook 8560w
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=7adec95a-0928-4a57-935c-c81c16f6535b ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: Upgraded to oneiric on 2011-09-30 (12 days ago)
dmi.bios.date: 07/25/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SVD Ver. F.03
dmi.board.name: 1631
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 01.35
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.03:bd07/25/2011:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.35:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 8560w
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu3
version.ia32-libs: ia32-libs 20090808ubuntu25
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.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7
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

[Bryce Harrington (bryce)]

Hey josteinaj,

Hi, thanks for reporting this issue during the development period of
Ubuntu.

I notice there's not been further comments to the bug report since the
release came out, would you mind updating us on the status of it in the
release?

Are you still able to reproduce the issue? If not, do you think the bug
report can be closed, or do you think we should continue tracking it?

[Jostein (josteinaj)]

Sure.

I think the bug can be closed. I were not able to reproduce it earlier as it happened randomly, and for the last weeks I fortunately haven't experienced this specific problem. I guess some update fixed it.

[Launchpad Janitor (janitor)]

[Expired for nvidia-graphics-drivers (Ubuntu) because there has been no activity for 60 days.]