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[Sean Leonard <meanderingcode@xxxxxxxxxxxxxxxxx>]

I do not believe this is fixed in upstream kernel.  I am using the
linux-image-4.0.0-trunk-amd64 kernel package from experimental on my
Debian jessie box and I am getting the bug behavior described here.

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https://bugs.launchpad.net/bugs/1283701

Title:
  Apple Magic Trackpad: Three Finger Tap gets sent repeatedly

Status in linux package in Ubuntu:
  Fix Committed

Bug description:
  When using my Magic Trackpad with up to two fingers all works fine,
  like scrolling and right clicking. As soon as I barely touch the pad
  with three fingers, it becomes unresponsive for around 20 seconds.
  Checking evtest, the same event is sent all the time, blocking all
  others.

  evtest output after touching with three fingers:

  Event: time 1393156544.500256, -------------- SYN_REPORT ------------
  Event: time 1393156546.784405, type 3 (EV_ABS), code 47 (ABS_MT_SLOT), value 8
  Event: time 1393156546.784405, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 16
  Event: time 1393156546.784405, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 108
  Event: time 1393156546.784405, type 3 (EV_ABS), code 49 (ABS_MT_TOUCH_MINOR), value 120
  Event: time 1393156546.784405, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 2004
  Event: time 1393156546.784405, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value -460
  Event: time 1393156546.784405, type 3 (EV_ABS), code 47 (ABS_MT_SLOT), value 9
  Event: time 1393156546.784405, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 17
  Event: time 1393156546.784405, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 56
  Event: time 1393156546.784405, type 3 (EV_ABS), code 49 (ABS_MT_TOUCH_MINOR), value 84
  Event: time 1393156546.784405, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value -430
  Event: time 1393156546.784405, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value -785
  Event: time 1393156546.784405, type 3 (EV_ABS), code 47 (ABS_MT_SLOT), value 10
  Event: time 1393156546.784405, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 18
  Event: time 1393156546.784405, type 3 (EV_ABS), code 48 (ABS_MT_TOUCH_MAJOR), value 184
  Event: time 1393156546.784405, type 3 (EV_ABS), code 49 (ABS_MT_TOUCH_MINOR), value 124
  Event: time 1393156546.784405, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 1040
  Event: time 1393156546.784405, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value -1008
  Event: time 1393156546.784405, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
  Event: time 1393156546.784405, type 1 (EV_KEY), code 334 (BTN_TOOL_TRIPLETAP), value 1
  Event: time 1393156546.784405, type 3 (EV_ABS), code 0 (ABS_X), value 2004
  Event: time 1393156546.784405, type 3 (EV_ABS), code 1 (ABS_Y), value -460
  Event: time 1393156546.784405, -------------- SYN_REPORT ------------
  Event: time 1393156547.032985, type 1 (EV_KEY), code 334 (BTN_TOOL_TRIPLETAP), value 2
  Event: time 1393156547.032985, -------------- SYN_REPORT ------------
  Event: time 1393156547.068988, type 1 (EV_KEY), code 334 (BTN_TOOL_TRIPLETAP), value 2
  Event: time 1393156547.068988, -------------- SYN_REPORT ------------
  Event: time 1393156547.104987, type 1 (EV_KEY), code 334 (BTN_TOOL_TRIPLETAP), value 2
  [...]

  The last two rows are repeated until it eventually becomes responsive
  again.

  This is on a ubuntu 14.04 system.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-11-generic 3.13.0-11.31
  ProcVersionSignature: Ubuntu 3.13.0-11.31-generic 3.13.3
  Uname: Linux 3.13.0-11-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tom        2066 F.... pulseaudio
  CurrentDesktop: Pantheon
  Date: Sun Feb 23 12:47:55 2014
  HibernationDevice: RESUME=UUID=337ab8c5-44ab-4470-96a1-64d897d908c7
  InstallationDate: Installed on 2013-11-16 (98 days ago)
  InstallationMedia: elementary OS 0.3 "Isis" - Daily amd64 (20131109)
  MachineType: ASUSTeK Computer Inc. N73SV
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-11-generic root=UUID=525ecdf6-9dc4-43f1-94cf-ac35f676f796 ro quiet splash crashkernel=384M-:128M
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-11-generic N/A
   linux-backports-modules-3.13.0-11-generic  N/A
   linux-firmware                             1.125
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/28/2011
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: N73SV.303
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: N73SV
  dmi.board.vendor: ASUSTeK Computer Inc.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK Computer Inc.
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN73SV.303:bd04/28/2011:svnASUSTeKComputerInc.:pnN73SV:pvr1.0:rvnASUSTeKComputerInc.:rnN73SV:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
  dmi.product.name: N73SV
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK Computer Inc.

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