I also have this bug. When I rotate my mouse over my web-browser, I can get the cpu usage to spike as high as 40%. When I am not moving the mouse, it shows 1% usage. Rotating the mouse over a terminal window, it jumps to 3-5%.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/558657 Title: mouse usage causes Xorg CPU usage to spike, and mouse pointer becomes less responsive Status in “linux” package in Ubuntu: Incomplete Status in “linux” source package in Lucid: Triaged Status in “xserver-xorg-video-nouveau” package in Fedora: Unknown Bug description: Binary package hint: xorg Over time, my mouse pointer becomes more and more erratic and unresponsive. It never becomes unusable, but it gets jerky and hard to use. If I run 'top', I can watch Xorg CPU usage spike in direct correlation to how much I move the mouse around (and the mouse performance gets worse while I'm doing this). If I wave the mouse pointer around a lot, CPU will reliably hit 100%, and the pointer will be far behind my physical gestures with the mouse (and will continue to move for a while after I stop moving the mouse). CPU climbs back down after I stop moving the mouse. When I first log in, everything is fine. This problem gets worse the longer I stay in the same X Session. I haven't tried logging out back to GDM and logging back in; if you need me to I can try that. Switching between windows / desktops is also increasingly sluggish. This is all on Ubuntu lucid (development branch). I don't know if this is related to any of these bugs: bug #439138 bug #433802 ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: xorg 1:7.5+3ubuntu1 ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1 Uname: Linux 2.6.32-19-generic i686 NonfreeKernelModules: wl Architecture: i386 CheckboxSubmission: 5e7a695a9deba63c8a14a741c27a2f28 CheckboxSystem: d00f84de8a555815fa1c4660280da308 Date: Thu Apr 8 15:08:28 2010 DkmsStatus: bcmwl, 5.60.48.36+bdcom, 2.6.31-20-generic, i686: installed bcmwl, 5.60.48.36+bdcom, 2.6.32-19-generic, i686: installed bcmwl, 5.60.48.36+bdcom, 2.6.32-17-generic, i686: installed bcmwl, 5.60.48.36+bdcom, 2.6.32-18-generic, i686: installed MachineType: Dell Inc. XPS M1330 ProcCmdLine: root=UUID=2eed5674-1b11-4434-85be-b09c3986a095 ro quiet splash ProcEnviron: PATH=(custom, user) LANG=en_US.utf8 SHELL=/bin/bash SourcePackage: xorg Symptom: display dmi.bios.date: 11/19/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A14 dmi.board.name: 0U8042 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA14:bd11/19/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn0U8042:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: XPS M1330 dmi.sys.vendor: Dell Inc. system: distro: Ubuntu codename: lucid architecture: i686 kernel: 2.6.32-19-generic [lspci] 00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 0c) Subsystem: Dell Device [1028:0209] 01:00.0 VGA compatible controller [0300]: nVidia Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1) Subsystem: Dell Device [1028:0209] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/558657/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
