Install debug symbols and perf (apt-get install linux-tools and all the appropriate *-dbg), then lot at where "sudo perf top" reports the time being spent.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cairo in Ubuntu. https://bugs.launchpad.net/bugs/1073372 Title: Xorg produces high CPU usage, slow gnome-terminal Status in “cairo” package in Ubuntu: Incomplete Bug description: Thinkpad X220 (Intel video, chipsets, etc) After a few days of uptime and usage on this laptop, the xorg process will start randomly (but consistently over time) producing high CPU usage, even with all applications closed. CPU according to top will vary between about 10% and 90%, and at high CPU times, the system fans will be running rather high. Also, the UIs will slow down and there will be a lot of latency on keypresses (sometimes up to 1 second), with the occasional loss of keypresses. In gnome-terminal, this has the effect of feeling like you're over a cellular modem, even on a local terminal. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5 Uname: Linux 3.5.0-17-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.6.1-0ubuntu3 Architecture: amd64 CompizPlugins: [core,composite,opengl,decor,vpswitch,move,gnomecompat,compiztoolbox,imgpng,mousepoll,regex,place,snap,unitymtgrabhandles,resize,grid,session,animation,workarounds,expo,wall,ezoom,fade,scale,unityshell] CompositorRunning: compiz Date: Tue Oct 30 16:30:09 2012 DistUpgraded: 2012-09-15 22:41:29,902 DEBUG enabling apt cron job DistroCodename: quantal DistroVariant: ubuntu DkmsStatus: virtualbox, 4.1.18, 3.5.0-17-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:21da] InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) Lsusb: Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 0a5c:217f Broadcom Corp. Bluetooth Controller MachineType: LENOVO 4286CTO ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-17-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to quantal on 2012-09-16 (44 days ago) dmi.bios.date: 04/25/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 8DET61WW (1.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 4286CTO 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:bvr8DET61WW(1.31):bd04/25/2012:svnLENOVO:pn4286CTO:pvrThinkPadX220:rvnLENOVO:rn4286CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 4286CTO dmi.product.version: ThinkPad X220 dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.8.4-0ubuntu3 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.39-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.0-0ubuntu6 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 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/cairo/+bug/1073372/+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
