I didn't spot anything in the libdrm changelog relevant to this. There's a few buffer flushing changes in the newer ddx driver, but they appeared related to corruption issues rather than crashes.
I'd built compiz from source and installed it, but on restart unity didn't come up. Does compiz need to be installed to /usr or is the default /usr/local supposed to work? Or does unity need rebuilt against the new compiz or something? -- 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/1056039 Title: X crashes in drm_intel_gem_bo_close_vma <- drm_intel_gem_bo_unreference_final <- drm_intel_gem_bo_unreference_final ... Status in “xserver-xorg-video-intel” package in Ubuntu: Fix Released Status in “xserver-xorg-video-intel” source package in Precise: Incomplete Bug description: TEST CASE: Setup: #. CCSM > Composite > Unredirect Fullscreen Windows = ON #. Install Chromium or Chrome browser. #. Run ccsm and ensure the Scale plugin is loaded and "Initiate Window Picker" is bound to Shift+Alt+Up. Actions: #. Open a Chrome/Chromium window. #. Open a gnome-terminal window (Ctrl+Alt+T) #. Move the gnome-terminal to the centre of the screen, above the Chrome window. #. Click on the Chrome window and make it fullscreen (F11). #. Hold Shift+Alt and tap Up to engage scale mode. Keep holding Shift+Alt for a few seconds. Expected Result: Windows get scaled and you can see both the Chrome and Terminal windows. crashes Xorg in: (gdb) bt #0 0x00007fb5122afc62 in drm_intel_gem_bo_close_vma ( bufmgr_gem=0x7fb518abb990, bo_gem=0x7fb518abb940) at ../../intel/intel_bufmgr_gem.c:1017 #1 0x00007fb5122b152f in drm_intel_gem_bo_unreference_final ( bo=0x7fb518abb940, time=80627) at ../../intel/intel_bufmgr_gem.c:1073 #2 0x00007fb5122b14a0 in drm_intel_gem_bo_unreference_final ( bo=0x7fb519032d10, time=80627) at ../../intel/intel_bufmgr_gem.c:1048 #3 0x00007fb5122b16cc in drm_intel_gem_bo_unreference (bo=0x7fb519032d10) at ../../intel/intel_bufmgr_gem.c:1118 #4 drm_intel_gem_bo_unreference (bo=0x7fb519032d10) at ../../intel/intel_bufmgr_gem.c:1105 #5 0x00007fb5124d25f5 in intel_batch_submit (scrn=0x7fb518537da0) at ../../src/intel_batchbuffer.c:305 #6 0x00007fb51615d004 in _CallCallbacks (pcbl=0x7fb5165187a8, call_data=0x0) at ../../dix/dixutils.c:768 #7 0x00007fb516295f9b in CallCallbacks (call_data=0x0, pcbl=0x7fb5165187a8) at ../../include/callback.h:86 #8 FlushAllOutput () at ../../os/io.c:647 #9 0x00007fb516158757 in Dispatch () at ../../dix/dispatch.c:465 #10 0x00007fb5161477ba in main (argc=8, argv=<optimised out>, envp=<optimised out>) at ../../dix/main.c:287 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-31.50-generic 3.2.28 Uname: Linux 3.2.0-31-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.0.1-0ubuntu13 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,mousepoll,gnomecompat,resize,vpswitch,grid,move,imgpng,regex,animation,wall,place,fade,session,expo,workarounds,scale,ezoom,unityshell] CompositorRunning: compiz Date: Tue Sep 25 17:01:24 2012 DistUpgraded: Fresh install DistroCodename: precise DistroVariant: ubuntu ExtraDebuggingInterest: Yes, GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:047e] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MachineType: Dell Inc. OptiPlex 990 ProcEnviron: LANGUAGE=en_AU:en TERM=xterm PATH=(custom, no user) LANG=en_AU.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic root=UUID=9f6f99e2-1189-4bf1-bff7-af137071f572 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/10/2011 dmi.bios.vendor: Dell Inc. dmi.bios.version: A07 dmi.board.name: 0D6H9T dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 15 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA07:bd09/10/2011:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn0D6H9T:rvrA00:cvnDellInc.:ct15:cvr: dmi.product.name: OptiPlex 990 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.7.8-0ubuntu1.4 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.3+8.0.2-0ubuntu3.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.3+8.0.2-0ubuntu3.2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.7 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 2:2.17.0-1ubuntu4.1 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/1056039/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

