Came to this bug with same symptoms, Ubuntu 12.10 on Dell XPS M1330 with
Intel graphics(Intel Corporation Mobile GM965/GL960 Integrated Graphics
Controller) - intermittently the screen would freeze, but usually I had
control of the mouse still but couldn't click on anything, also couldn't
CTL+ALT+F{1-6} to a shell - but I could SSH in and had full CLI access.
I posted the errors from Xorg.0.log below.I think I have found a solution here: https://bbs.archlinux.org/viewtopic.php?id=168312 I added: Option "AccelMethod" "EXA" to the Display section in xorg.conf, and so far so good. Thought I would put this out there for others to try. Xorg.0.log errors: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x49) [0xb771ccd9] (EE) 1: /usr/bin/X (mieqEnqueue+0x223) [0xb76fb6d3] (EE) 2: /usr/bin/X (0xb7575000+0x52e25) [0xb75c7e25] (EE) 3: /usr/bin/X (xf86PostMotionEventM+0x24b) [0xb76049ab] (EE) 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6eb0000+0x3b6d) [0xb6eb3b6d] (EE) 5: /usr/lib/xorg/modules/input/evdev_drv.so (0xb6eb0000+0x5296) [0xb6eb5296] (EE) 6: /usr/bin/X (0xb7575000+0x7ea81) [0xb75f3a81] (EE) 7: /usr/bin/X (0xb7575000+0xaa7a3) [0xb761f7a3] (EE) 8: (vdso) (__kernel_sigreturn+0x0) [0xb7552400] (EE) 9: (vdso) (__kernel_vsyscall+0x10) [0xb7552424] (EE) 10: /lib/i386-linux-gnu/libc.so.6 (ioctl+0x19) [0xb728ab79] (EE) 11: /usr/lib/i386-linux-gnu/libdrm.so.2 (drmIoctl+0x34) [0xb7469a04] (EE) 12: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x21bad) [0xb6edfbad] (EE) 13: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0xa7bf1) [0xb6f65bf1] (EE) 14: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x5f889) [0xb6f1d889] (EE) 15: /usr/lib/xorg/modules/drivers/intel_drv.so (0xb6ebe000+0x61f51) [0xb6f1ff51] (EE) 16: /usr/bin/X (0xb7575000+0x12842f) [0xb769d42f] (EE) 17: /usr/bin/X (CompositeGlyphs+0xbd) [0xb768acbd] (EE) 18: /usr/bin/X (0xb7575000+0x1212a9) [0xb76962a9] (EE) 19: /usr/bin/X (0xb7575000+0x11ccde) [0xb7691cde] (EE) 20: /usr/bin/X (0xb7575000+0x3cba5) [0xb75b1ba5] (EE) 21: /usr/bin/X (0xb7575000+0x2a10a) [0xb759f10a] (EE) 22: /lib/i386-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0xb71bd4d3] (EE) 23: /usr/bin/X (0xb7575000+0x2a4e9) [0xb759f4e9] (EE) (EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack. (EE) [mi] mieq is *NOT* the cause. It is a victim. (EE) [mi] EQ overflow continuing. 100 events have been dropped. (EE) (EE) Backtrace: ...and so on... -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1210397 Title: Xorg hang: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. Status in “xorg” package in Ubuntu: Confirmed Bug description: Seeing xorg freeze under intense CPU usage on quantal (AMD chipset, radeon drivers, x86_64), relevant part of xorg log below. NOTE that this appears to be the exact same issue as https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics- drivers/+bug/1077616?comments=all, where it has sat ignored for 8 months. Relevant part of xorg log: (EE) [mi] EQ overflowing. Additional events will be discarded until existing events are processed. (EE) (EE) Backtrace: (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x7fe6a7fddb76] (EE) 1: /usr/bin/X (mieqEnqueue+0x26b) [0x7fe6a7fbef5b] (EE) 2: /usr/bin/X (0x7fe6a7e35000+0x6a4d2) [0x7fe6a7e9f4d2] (EE) 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7fe6a1025000+0x5f34) [0x7fe6a102af34] (EE) 4: /usr/bin/X (0x7fe6a7e35000+0x93707) [0x7fe6a7ec8707] (EE) 5: /usr/bin/X (0x7fe6a7e35000+0xbcee8) [0x7fe6a7ef1ee8] (EE) 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fe6a715b000+0xfcb0) [0x7fe6a716acb0] (EE) 7: /lib/x86_64-linux-gnu/libc.so.6 (0x7fe6a5dbf000+0x14f1b1) [0x7fe6a5f0e1b1] (EE) 8: /usr/bin/X (WriteToClient+0x1ff) [0x7fe6a7fe10df] (EE) 9: /usr/bin/X (XkbSendStateNotify+0x1a2) [0x7fe6a7f8e232] (EE) 10: /usr/bin/X (XkbHandleActions+0x4be) [0x7fe6a7f9770e] (EE) 11: /usr/bin/X (AccessXFilterPressEvent+0x24b) [0x7fe6a7f9064b] (EE) 12: /usr/bin/X (mieqProcessDeviceEvent+0x1b5) [0x7fe6a7fbf385] (EE) 13: /usr/bin/X (mieqProcessInputEvents+0xf8) [0x7fe6a7fbf4a8] (EE) 14: /usr/bin/X (ProcessInputEvents+0x9) [0x7fe6a7ec8789] (EE) 15: /usr/bin/X (0x7fe6a7e35000+0x557d2) [0x7fe6a7e8a7d2] (EE) 16: /usr/bin/X (0x7fe6a7e35000+0x4456a) [0x7fe6a7e7956a] (EE) 17: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fe6a5de076d] (EE) 18: /usr/bin/X (0x7fe6a7e35000+0x448ad) [0x7fe6a7e798ad] (EE) (EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack. (EE) [mi] mieq is *NOT* the cause. It is a victim. [ 682.730] [mi] EQ processing has resumed after 87 dropped events. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-36.57-generic 3.5.7.14 Uname: Linux 3.5.0-36-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.6.1-0ubuntu11 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz Date: Fri Aug 9 15:20:46 2013 DistUpgraded: 2013-07-15 13:05:10,878 DEBUG enabling apt cron job DistroCodename: quantal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Advanced Micro Devices [AMD] nee ATI Thames XT/GL [Radeon HD 7600M Series] [1002:6840] (prog-if 00 [VGA controller]) Subsystem: Toshiba America Info Systems Device [1179:fb31] InstallationDate: Installed on 2013-07-15 (25 days ago) InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213) MachineType: TOSHIBA Satellite Pro L850 MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-36-generic root=UUID=37e1c61e-3c67-4da5-b08e-f2b9637da3d7 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to quantal on 2013-07-15 (25 days ago) dmi.bios.date: 4/03/2013 dmi.bios.vendor: Insyde Corp. dmi.bios.version: 6.60 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: PLCSF8 dmi.board.vendor: Intel dmi.board.version: Type2 - Board Version dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis Manufacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvr6.60:bd4/03/2013:svnTOSHIBA:pnSatelliteProL850:pvrPSKG9A-00C001:rvnIntel:rnPLCSF8:rvrType2-BoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion: dmi.product.name: Satellite Pro L850 dmi.product.version: PSKG9A-00C001 dmi.sys.vendor: TOSHIBA version.compiz: compiz 1:0.9.8.6-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.43-0ubuntu0.2 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.3-0ubuntu0.4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.3-0ubuntu0.4 version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.99.99~git20120913.8637f772-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.2-0ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1210397/+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
