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[Rüdiger Kupper <ruediger.kupper+launchpad@xxxxxxxxx>]

by request from Christopher M. Penalver, see bug #1042069, comment #52

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https://bugs.launchpad.net/bugs/1176857

Title:
  Touchpad resolution too coarse on thinkpad X230

Status in linux package in Ubuntu:
  Confirmed
Status in xserver-xorg-input-synaptics package in Ubuntu:
  Confirmed

Bug description:
  The thinkpad X230 tablet has three HID for controlling the pointer: mouse, touch screen and touch pad.
  With mouse and touch screen as inpt devices, I have pixel-exact control of the pointer.

  In contrast, when using the touch pad as the input device, resolution
  is very coarse: the pointer jumps in small steps of approx. 5 pixels.
  This resolution is too coarse, e.g. for controlling graphical user
  interfaces with small buttons. Very often, when I tap on the touch pad
  for emulating a left click, the pointer jumps 5 pixels from where it
  was, causing me to actually click on a different button. (This can be
  quite annoying. Example: I regularly hit "suspend" instead of "log
  out" in the system menu).

  Can the pointer resolution be changed for the touch pad? If so, it
  should default to pixel-exact resolution.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: xorg 1:7.7+1ubuntu4
  ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: compiz
  CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
  CompositorUnredirectFSW: true
  Date: Mon May  6 13:13:29 2013
  DistUpgraded: 2013-04-25 18:13:00,044 WARNING no activity on terminal for 300 seconds (Konfiguration von upstart wird vorbereitet)
  DistroCodename: raring
  DistroVariant: ubuntu
  DkmsStatus: virtualbox, 4.2.10, 3.8.0-19-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:2203]
  InstallationDate: Installed on 2013-04-12 (23 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: LENOVO 34382AG
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=/dev/mapper/vg-lv--root ro quiet splash "acpi_osi=!Windows 2012" vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to raring on 2013-04-25 (10 days ago)
  dmi.bios.date: 02/25/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GCET92WW (2.52 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 34382AG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGCET92WW(2.52):bd02/25/2013:svnLENOVO:pn34382AG:pvrThinkPadX230Tablet:rvnLENOVO:rn34382AG:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 34382AG
  dmi.product.version: ThinkPad X230 Tablet
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.9~daily13.04.18.1~13.04-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.43-0ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.1.1-0ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.1.1-0ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu6
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.6-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1
  xserver.bootTime: Sun May  5 19:49:27 2013
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
  xserver.version: 2:1.13.3-0ubuntu6
  xserver.video_driver: intel

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