What style of lag is this? Since you mention that compiz rendering makes it worse, I imagine it to be render latency. Can you paste an example URL?
-- 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/1117563 Title: X hard lockup in raring, can't even switch VTs Status in “xserver-xorg-video-intel” package in Ubuntu: Triaged Bug description: After an upgrade to raring, I've experienced a bug where firefox and X are each consuming a CPU doing nothing useful. When this happens, I can still log into the machine remotely with no problems, but the console is completely frozen. The X cursor doesn't move, unity doesn't respond, windows are not refreshing, and I can't even change VTs (from the keyboard, or over ssh - if I run 'sudo chvt 1', it hangs). It appears that X and firefox are both busy, but strace of firefox shows no output. kill -9 of the firefox process also has no effect (bug #1117499). There is nothing logged in dmesg or in the X log that seems relevant. After debugging this for about an hour, the firefox process spontaneously died, at which point X also stopped monopolizing the CPU; but the console was still frozen, A few minutes later, the VT switch request seems to have registered and I wound up on VT1. However, switching back to VT7 does not result in the screen being refreshed, and 'sudo chvt 1' again hangs. --- ApportVersion: 2.8-0ubuntu4 Architecture: amd64 DistroCodename: raring DistroRelease: Ubuntu 13.04 DistroVariant: ubuntu InstallationDate: Installed on 2010-09-24 (866 days ago) InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1) MarkForUpload: True Package: xorg-server (not installed) ProcVersionSignature: Ubuntu 3.8.0-4.8-generic 3.8.0-rc6 Tags: raring running-unity ubuntu Uname: Linux 3.8.0-4-generic x86_64 UpgradeStatus: Upgraded to raring on 2013-01-25 (12 days ago) UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare src sudo --- ApportVersion: 2.8-0ubuntu4 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,imgpng,snap,place,grid,resize,regex,mousepoll,gnomecompat,unitymtgrabhandles,vpswitch,move,animation,expo,session,wall,ezoom,staticswitcher,workarounds,fade,scale,unityshell] DistUpgraded: 2013-01-25 08:16:10,776 WARNING no activity on terminal for 300 seconds (Configuring texlive) DistroCodename: raring DistroRelease: Ubuntu 13.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:215a] InstallationDate: Installed on 2010-09-24 (866 days ago) InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1) MachineType: LENOVO 3249CTO MarkForUpload: True Package: xorg 1:7.7+1ubuntu4 PackageArchitecture: amd64 PlymouthDebug: Error: [Errno 13] Permission denied: u'/var/log/plymouth-debug.log' ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-4-generic root=/dev/mapper/hostname-root ro quiet splash --verbose vt.handoff=7 ProcVersionSignature: Ubuntu 3.8.0-4.8-generic 3.8.0-rc6 Tags: raring running-unity ubuntu single-occurrence Uname: Linux 3.8.0-4-generic x86_64 UpgradeStatus: Upgraded to raring on 2013-01-25 (12 days ago) UserGroups: adm admin cdrom dialout libvirtd lpadmin mythtv plugdev sambashare src sudo dmi.bios.date: 08/23/2010 dmi.bios.vendor: LENOVO dmi.bios.version: 6QET52WW (1.22 ) dmi.board.name: 3249CTO 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:bvr6QET52WW(1.22):bd08/23/2010:svnLENOVO:pn3249CTO:pvrThinkPadX201:rvnLENOVO:rn3249CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 3249CTO dmi.product.version: ThinkPad X201 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.9~daily13.01.25-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.41-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.2-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.2-0ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.19-0ubuntu3 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.6-0ubuntu2 xserver.bootTime: Mon Feb 4 17:31:16 2013 xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.2-0ubuntu1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1117563/+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
