Hi Adrien, This can be rather difficult to find the cause of; I've seen it once on one of my machine, and it turned out to be an application I was using that was doing a lot to the X server for no good reason. (It was animating a little icon but was trying to be too clever).
Run top and watch what is taking the cpu, then close each application and see if it drops, to try and find out what is using the cpu. Dave -- 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/1087122 Title: Xorg process is eating my CPU cores in Quantal 12.10 Status in “xorg” package in Ubuntu: Confirmed Bug description: Starting a couple of days ago, I notice the fan on my computer has been constantly running hard. Doing a 'top' in a terminal shows that Xorg is almost always at the top of the process list and almost constantly using 4% - 12% CPU. Looking at the system monitor shows both cores running at 60%+ constantly. The processor is an Intel B970 with Intel HDA graphics. Not sure how much longer I'll have Quantal installed on this machine, this behavior is not tolerable so I'll likely replace Quantal with something else. I've also just today started experiencing acpi problems. The remaining time and percentage values are inaccurate and change suddenly. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: xorg 1:7.7+1ubuntu4 ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7 Uname: Linux 3.5.0-19-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.6.1-0ubuntu6 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz Date: Wed Dec 5 20:23:22 2012 DistUpgraded: Fresh install DistroCodename: quantal DistroVariant: ubuntu ExtraDebuggingInterest: No GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0106] (rev 09) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:14f7] InstallationDate: Installed on 2012-11-01 (34 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MachineType: ASUSTeK COMPUTER INC. X401A1 MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=ec6030d9-ec6d-4dcb-a18d-9af1cf3fe133 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/02/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: X401A1.204 dmi.board.asset.tag: ATN12345678901234567 dmi.board.name: X401A1 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: 1.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK COMPUTER INC. dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX401A1.204:bd05/02/2012:svnASUSTeKCOMPUTERINC.:pnX401A1:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX401A1:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0: dmi.product.name: X401A1 dmi.product.version: 1.0 dmi.sys.vendor: ASUSTeK COMPUTER INC. version.compiz: compiz 1:0.9.8.4+bzr3412-0ubuntu0.1 version.ia32-libs: ia32-libs 20090808ubuntu36 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 2:1.13.0-0ubuntu6.1 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/xorg/+bug/1087122/+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
