ubuntu-x-swat team mailing list archive

[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

** Description changed:

  Binary package hint: xorg
  
  The mouse makes random jumps of about 20 pixels while being moved. Its
  very much like using an optical mouse on too smooth a surface - but this
  is when using a thinkpad trackpoint device - no other pointing device
  plugged in.
  
  This happens after executing the following commands
  
  xrandr --fb 1920x1200
  xrandr --output VGA1 --mode 1920x1200
  xrandr --output LVDS1 --mode 1280x800
  xrandr --output VGA1 --pos 0x0
  xrandr --output LVDS1 --panning 1920x1200+0+0/1920x1200+0+0/0/0/0/0
  
  (Specifically, after executing the last one).
  
  Its very difficult to pick accurately a place to click, so if I am
  trying to maximise or minimise a window for instance, sometimes it kills
  the window instead - and vice versa.
  
  It only starts when the xrand panning command is activated. However I
  have been desperate for this feature to be put back since it was removed
  in a past version of Ubuntu and I am loathe to ditch panning.
  
  An accurate description is this. Picking a point to click, lets say the
  'file' dialogue in a window, I move the mouse towards this point. As I
  get close, the mouse starts 'vibrating' rapidly (at a guess about 10
  jumps per second). When I stop moving the mouse, the pointer stays
  still.  However the pointer might not be where I need it. I move the
  mouse one pixel (very carefully) towards where I want it to be, and it
  shoots about 20 pixels down and to the right. Move another pixel and it
  jumps back to the original position, etc. The result with slow mouse
  movement is a vibrating mouse pointer that you can not place anywhere.
  
  This only happens in certain parts of the screen, but which part
  randomly varies. If I go back to a part of the screen where the pointer
  was vibrating 2 mins ago, it might not be vibrating now. However it
  might be vibrating if I move it to a different part of the screen now.
  As I work, it gets in the way frequently, at least once a minute. It
  also happens when I am simply over the desktop, and not over any
  application buttons or similar.
  
  I have also filed a different bug which is related to panning and the
  mouse, which might be related, and which prevents the smaller window
  into a larger virtual screen scrolling to the edge of the screen
  sometimes.
  
  My setup is a lenovo x200 laptop which is brand new, but which I tried
  with windows 7 first without a problem. It has a dell 24 inch monitor
  plugged in and I use the 2 screens at the same time, with a 1920x1200
  virtual screen, with the monitor displaying this resolution natively and
  the laptop with a 1280x800 screen displaying a 1280x800 window into the
  virtual screen. Obviously the laptop screen pans around inside the
  virtual screen. The laptop is running a clean 9.10 install which has
  been updated by the update manager.
  
  Before I execute the panning xrand command, the problem is not there.
  
  If anyone can suggest things to try I will be glad to try them.
  
  Best regards, Pete
  
  ProblemType: Bug
  Architecture: i386
  Date: Sun Jan 17 13:09:26 2010
  DistroRelease: Ubuntu 9.10
  InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
  MachineType: LENOVO 7449C4G
  Package: xorg 1:7.4+3ubuntu10
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.31-17-generic root=UUID=b08feae2-fbdf-4bd3-8a12-b962e527183b ro quiet splash
  ProcEnviron:
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.31-17.54-generic
  RelatedPackageVersions:
   xserver-xorg 1:7.4+3ubuntu10
   libgl1-mesa-glx 7.6.0-1ubuntu4
   libdrm2 2.4.14-1ubuntu1
   xserver-xorg-video-intel 2:2.9.0-1ubuntu2
   xserver-xorg-video-ati 1:6.12.99+git20090929.7968e1fb-0ubuntu1
  SourcePackage: xorg
  Uname: Linux 2.6.31-17-generic i686
  XorgConf: Error: [Errno 2] No such file or directory: '/etc/X11/xorg.conf'
  dmi.bios.date: 09/24/2009
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7WET60WW (3.10 )
  dmi.board.name: 7449C4G
  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:bvr7WET60WW(3.10):bd09/24/2009:svnLENOVO:pn7449C4G:pvrThinkPadX200Tablet:rvnLENOVO:rn7449C4G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 7449C4G
  dmi.product.version: ThinkPad X200 Tablet
  dmi.sys.vendor: LENOVO
  fglrx: Not loaded
  system:
   distro:             Ubuntu
   architecture:       i686kernel:             2.6.31-17-generic
+ 
+ [lspci]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 07)
+     	Subsystem: Lenovo Device [17aa:20e4]

-- 
[GM45] Mouse moves erratically after executing xrandr --panning
https://bugs.launchpad.net/bugs/508752
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