Looks like this happens not only with LibreOffice. It can happen any time, but this behaviour is rather rare though.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1079616 Title: Xorg freeze Status in “xserver-xorg-video-intel” package in Ubuntu: New Bug description: Sometimes while opening LibreOffice, xorg hangs, without any high CPU usage, it just hangs any time while playing around with LibreOffice, i.e. minimize, maximize, move to other desktop, etc. 1) Description: Ubuntu 12.04.1 LTS Release: 12.04 2) xorg: Installed: 1:7.6+12ubuntu1 Candidate: 1:7.6+12ubuntu1 Version table: *** 1:7.6+12ubuntu1 0 500 http://az.archive.ubuntu.com/ubuntu/ precise/main i386 Packages 100 /var/lib/dpkg/status 3) Open file from recently used in LibreOffice Calc 4) xorg hanged, and I forced to restart lightdm from tty1 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-33.52-generic-pae 3.2.31 Uname: Linux 3.2.0-33-generic-pae i686 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu15 Architecture: i386 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,grid,imgpng,vpswitch,regex,unitymtgrabhandles,snap,animation,place,mousepoll,move,gnomecompat,workarounds,resize,expo,session,wall,ezoom,fade,scale,unityshell] CompositorRunning: compiz Date: Fri Nov 16 14:26:15 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu DkmsStatus: virtualbox, 4.1.12, 3.2.0-32-generic-pae, i686: installed virtualbox, 4.1.12, 3.2.0-33-generic-pae, i686: installed ExtraDebuggingInterest: Yes, GpuHangFrequency: Very infrequently GpuHangReproducibility: Occurs more often under certain circumstances GpuHangStarted: Since before I upgraded GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:1618] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301) MachineType: Hewlett-Packard HP EliteBook 8560p MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-33-generic-pae root=UUID=e15a8c1f-f329-4872-b00c-8c448684fd29 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/10/2011 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68SCF Ver. F.04 dmi.board.name: 1618 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 97.41 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68SCFVer.F.04:bd05/10/2011:svnHewlett-Packard:pnHPEliteBook8560p:pvrA0001502:rvnHewlett-Packard:rn1618:rvrKBCVersion97.41:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP EliteBook 8560p dmi.product.version: A0001502 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz 1:0.9.7.8-0ubuntu1.4 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.8 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1079616/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp