I doubt it is an Nvidia issue for these reasons: 1.) I've installed 12.04 on my mom's quad core, and Nvidia proprietary is _probably_ not installed there.
2.) This happens in Firefox, but NOT Chromium(on the same web page, namely cuttherope.ie) 3.) According to the top command(I can post the top screen shot if you insist) the problem is this: Chrome distributes the work between several threads(both Chrome and xorg threads are busy) hence utilizing more cores for the same job. In fact, Chrome uses more total CPU than Firefox for this job, but it is very smooth.) Firefox, somehow, seems to dump the whole task onto xorg(and a single thread, apparently.) I have Ubuntu 10.04-LTS on another 2 core box. The same version of Firefox(16.0.2) is running there. HOWEVER, Firefox(10.04-LTS) renders that same web page very smoothly. Like Chromium(12.04-LTS) it distributes the work, apparently, evenly between the FF process and xorg, i.e. several cores.) It is strange: if the FF versions weren't the same, I would surely report it to the Mozilla people. What to do? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/973506 Title: Huge processor's loading by Xorg process when nvidia proprietary drivers installed Status in “nvidia-graphics-drivers” package in Ubuntu: Confirmed Bug description: When I press right button, switch window or scroll, I see huge processor's loading by Xorg process. Performance was bad also starting with -nvidia 285.05.33 Linux 3.2.0-17 ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg 1:7.6+12ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13 Uname: Linux 3.2.0-21-generic i686 NonfreeKernelModules: nvidia .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0' .proc.driver.nvidia.registry: Binary: "" .tmp.unity.support.test.0: ApportVersion: 2.0-0ubuntu4 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,gnomecompat,grid,imgpng,mousepoll,move,place,regex,resize,session,snap,unitymtgrabhandles,vpswitch,wall,animation,expo,ezoom,fade,scale,unityshell,workarounds] CompositorRunning: compiz Date: Wed Apr 4 18:54:59 2012 DistUpgraded: 2012-04-04 00:45:29,716 DEBUG enabling apt cron job DistroCodename: precise DistroVariant: ubuntu InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) MachineType: LG Electronics R500-U.CP21R1 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcEnviron: TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-21-generic root=UUID=e38eba8a-7bde-4e33-af6b-828c7e124ffc ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to precise on 2012-04-03 (0 days ago) dmi.bios.date: 08/29/2007 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: COLSSF10 dmi.board.name: COLUMBIA dmi.board.vendor: LG Electronics dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LG Electronics dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrCOLSSF10:bd08/29/2007:svnLGElectronics:pnR500-U.CP21R1:pvrNotApplicable:rvnLGElectronics:rnCOLUMBIA:rvrNotApplicable:cvnLGElectronics:ct10:cvrN/A: dmi.product.name: R500-U.CP21R1 dmi.product.version: Not Applicable dmi.sys.vendor: LG Electronics version.compiz: compiz 1:0.9.7.4-0ubuntu1 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3 version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu8 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 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 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/nvidia-graphics-drivers/+bug/973506/+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
