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[bugbot <746084@xxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  I just upgraded from Kubuntu 9.10 via 10.04 and 10.10 to 11.04-dev.
  Since 10.10 the mouse sometimes "stutters" while moving, freezing for a
  few hundred milliseconds. Similar behaviour has been reported for
  Maverick before (#595764, #599068, #662946, #658747), however in these
  cases it seems to have been limited to i8xx GPUs while I use an i945...
  Additionally, I could not find reports of this problem re-occuring (or
  still occuring) in Natty, so I'm reporting it here.
  
  The mouse stuttering / short freezes are much better than with Maverick,
  where even the sound was affected, but it's still pretty noticeable and
  annoying / distracting.
  
  Using "top", I noticed a kernel thread called "kworker" being listed
  among the top-5 processes in the process list refresh following such a
  "mouse stuttering".
  
  I'm not sure if any further information is neede, I'm happy to provide
  whatever I can to help resolve this problem.
  
    Gunter
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
  ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
  Uname: Linux 2.6.38-7-generic x86_64
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: kwin
  DRM.card0.DVI.D.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1920x1080 1680x1050 1280x1024 1280x1024 1440x900 1440x900 1280x960 1152x864 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 720x400
   edid-base64: AP///////wAmzQxWuwMAACwUAQOANB14KmBBplZKnCUSUFS/7wCBgIFAcU+VAJUPswABAQEBAjqAGHE4LUBYLEUACSUhAAAeAAAA/QA4TB5TEQAKICAgICAgAAAA/ABQTDI0MDlIRAogICAgAAAA/wAxMTAwNU0wQjAwOTU1AZsCAwgAQxITHowK0Iog4C0QED6WAAklIQAAGAEdAHJR0B4gbihVAAklIQAAHgEdALxS0B4guChVQAklIQAAHowK0JAgQDEgDEBVAAklIQAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA4w==
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1280x800
   edid-base64: AP///////wBEky4AAAAAAAAPAQOAGhB4CtLwllhOkSgjUFQAAAABAQEBAQEBAQEBAQEBAQEB6hoAgFAgEDAVIEQABaMQAAAYAAAADwAIGBJyAQoCMh6gBDIBAAAA/gBRVUFOVEFESVNQTEFZAAAA/gBRRDEyVEwwMTEKICAgAGA=
  DRM.card0.VGA.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes: 
   edid-base64:
  Date: Thu Mar 31 00:04:12 2011
  DistUpgraded: Log time: 2011-03-30 20:52:28.836629
  DistroCodename: natty
  DistroVariant: kubuntu
  GraphicsCard:
   Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
     Subsystem: Fujitsu Technology Solutions Device [1734:10ad]
     Subsystem: Fujitsu Technology Solutions Device [1734:10ad]
  MachineType: FUJITSU SIEMENS Amilo Si 1520
  ProcEnviron:
   LANGUAGE=
   LANG=de_DE@euro
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-7-generic root=UUID=37d94e9a-f57d-4c87-b661-20c037b7643e ro quiet
  Renderer: Unknown
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: Upgraded to natty on 2011-03-30 (0 days ago)
  dmi.bios.date: 07/21/2006
  dmi.bios.vendor: Phoenix
  dmi.bios.version: 1.10
  dmi.board.name: 10AD
  dmi.board.vendor: FUJITSU
  dmi.board.version: 3D22
  dmi.chassis.type: 10
  dmi.chassis.vendor: FUJITSU SIEMENS
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenix:bvr1.10:bd07/21/2006:svnFUJITSUSIEMENS:pnAmiloSi1520:pvrRev1:rvnFUJITSU:rn10AD:rvr3D22:cvnFUJITSUSIEMENS:ct10:cvrN/A:
  dmi.product.name: Amilo Si 1520
  dmi.product.version: Rev 1
  dmi.sys.vendor: FUJITSU SIEMENS
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.23-1ubuntu5
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
  version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu11
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6
+ 
+ [lspci]
+ 00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
+     	Subsystem: Fujitsu Technology Solutions Device [1734:10ad]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) (prog-if 00 [VGA controller])
+     	Subsystem: Fujitsu Technology Solutions Device [1734:10ad]

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https://bugs.launchpad.net/bugs/746084

Title:
  Stuttering mouse with Natty Narwhal