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[Bug 558657] Re: mouse usage causes Xorg CPU usage to spike, and mouse pointer becomes less responsive

 

Mikko Tamminen, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being
addressed as quickly as possible.

No need exists to comment here at this time. After reading the above
documentation in it's entirety, if you have further questions, you are
welcome to redirect them to the appropriate mailing list or forum via
http://www.ubuntu.com/support/community/mailinglists , or you may
contact me directly.

Thank you for your understanding.

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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:
  Invalid
Status in “linux” source package in Lucid:
  Invalid
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]

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