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[Johan Janez <johanjanezer9@xxxxxxxxx>]

*** This bug is a duplicate of bug 777074 ***
    https://bugs.launchpad.net/bugs/777074

Hi, i've been seeing the same issue with a magic mouse and the
"Cambridge Silicon Radio" bluetooth dongle on one of my pc's on gentoo
running kernel versions 3.12.x as well as on my main desktop running
windows 7 64 bit with an asus builtin motherboard bluetooth adapter of
the make from atheros "ar3011" as mentioned by Mr Khimani. Seeing same
behavior on both, works great with 1 or 2 finger touch, but locks up
with 3 or more touches on the touch surface of the mouse. Reading this
bug report i now understand why it works normally with the microsoft
driver on windows, as its not even registering the touches (more than
1). The mouse however works both on gentoo and windows on two other
laptops with a broadcomm bluetooth adapter (on each). So its in fact
either the dongle itself or the firmware/drivers t hat are bugged for
the bt adapter

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https://bugs.launchpad.net/bugs/862085

Title:
  Apple Magic Trackpad (hid-magicmouse) input freezes on 3 or 4 finger
  touch

Status in Open Input Framework:
  Invalid
Status in Unity:
  Invalid
Status in “linux” package in Ubuntu:
  In Progress
Status in “unity” package in Ubuntu:
  Invalid

Bug description:
  Update: The cause has been traced down to either a kernel or hardware
  issue as per comment #4.

  TEST CASE:

  Test case without X or Unity:

  1. Pair the trackpad using hcitool/hidd utilities.
  2. Run: evtest /dev/input/whatever
  You will see lots of input events for 1 or 2 finger touches. However the evtest event stream freezes when 3 or more fingers are touched.

  Test case in Unity:

  Touch 3 fingers: After a second or two (?!) the grab handles appear but the trackpad goes dead. Only my mouse continues to work. The trackpad comes back to life a while after the grab handles vanish, and I've moved the pointer with the mouse.
  Touch 4 fingers: Trackpad goes dead again. Takes a while before it starts responding again. This also triggers bug 859069.
  I can reproduce the above bugs in Ubuntu 11.04 and 11.10 beta 2 (live).

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: xserver-xorg-input-synaptics 1.3.99+git20110116.0e27ce3a-0ubuntu12.1
  ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
  Uname: Linux 2.6.38-11-generic x86_64
  Architecture: amd64
  CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,vpswitch,place,imgpng,regex,unitymtgrabhandles,grid,session,snap,mousepoll,resize,move,animation,expo,ezoom,workarounds,resizeinfo,wall,staticswitcher,fade,scale,unityshell]
  CompositorRunning: compiz
  Date: Thu Sep 29 15:00:41 2011
  DistUpgraded: Fresh install
  DistroCodename: natty
  DistroVariant: ubuntu
  DkmsStatus:
   bcmwl, 5.100.82.38+bdcom, 2.6.38-11-generic, x86_64: installed
   vboxhost, 4.0.10, 2.6.38-11-generic, x86_64: installed
   vboxhost, 4.0.10, 2.6.38-10-generic, x86_64: installed
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Dell Device [1028:047e]
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  MachineType: Dell Inc. OptiPlex 990
  ProcEnviron:
   LANGUAGE=en_AU:en
   LANG=en_AU.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=e79b78d3-ed94-4285-8af0-4c7803ef2097 ro quiet splash vt.handoff=7
  Renderer: Unknown
  SourcePackage: xserver-xorg-input-synaptics
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/28/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 0D6H9T
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 15
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd05/28/2011:svnDellInc.:pnOptiPlex990:pvr01:rvnDellInc.:rn0D6H9T:rvrA00:cvnDellInc.:ct15:cvr:
  dmi.product.name: OptiPlex 990
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2vv4
  version.ia32-libs: ia32-libs 20090808ubuntu13
  version.libdrm2: libdrm2 2.4.23-1ubuntu6
  version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.2-0ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.2-0ubuntu2
  version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4.1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu7.1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu7

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