Could you also include the snippet from your .xsession-errors around the time of the crash? Often this indicates an error message that can help narrow down what the problem was.
Alternately (and perhaps even better), would you mind running unity under gdb and collect a full backtrace on the crash? ** Description changed: Filing this against xorg initially as I'm not sure if it's related to the driver or if it's a Unity bug, though I've not seen this behaviour on other systems. Plugged an external monitor into the Thinkpad T510 (7375) using the - DisplayPort port. The external monitor DID come alive and dislay at + DisplayPort port. The external monitor DID come alive and display at least the 11.10 background, but Unity crashed (panel, launcher and window-decorations all went away). I had to drop to a console and reset Unity to get all the controls back and working. Tried this twice and same thing happened each time. Plug in DisplayPort, Unity, Window decorations, Launcher all disappear even though external monitor comes on (also with no panel). unity --reset at console after unplugging external monitor to fix. I'm also attaching a short video showing this as it occurs. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: xorg 1:7.6+7ubuntu7 ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4 Uname: Linux 3.0.0-12-generic i686 .tmp.unity.support.test.0: - + ApportVersion: 1.23-0ubuntu3 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell] CompositorRunning: compiz Date: Mon Oct 17 11:26:10 2011 DistUpgraded: Fresh install DistroCodename: oneiric DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: - Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) - Subsystem: Lenovo Device [17aa:215a] + Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) + Subsystem: Lenovo Device [17aa:215a] InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) Lsusb: - Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub - Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub - Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub - Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub + Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub MachineType: LENOVO 43492LU ProcEnviron: - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANG=en_US.UTF-8 + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=6ebbd55b-cdb1-42ff-8d08-89305e566190 ro quiet splash initcall_debug vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/09/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 6MET82WW (1.42 ) dmi.board.name: 43492LU dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr6MET82WW(1.42):bd02/09/2011:svnLENOVO:pn43492LU:pvrThinkPadT510:rvnLENOVO:rn43492LU:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 43492LU dmi.product.version: ThinkPad T510 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu3 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+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 ** Changed in: unity (Ubuntu Oneiric) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/876613 Title: [Thinkpad T510] Plugging in DisplayPort causes Unity to crash To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/876613/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs