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b1a1442a23776756b254b69786848a94d92445ba is the first bad commit
commit b1a1442a23776756b254b69786848a94d92445ba
Author: Jiri Kosina <jkosina@xxxxxxx>
Date:   Mon Jun 3 11:27:48 2013 +0200

    HID: core: fix reporting of raw events
    
    hdrw->raw event can return three different return value types:
    
    - ret < 0	indicates that the hdrv driver found an error while parsing
    - ret == 0	indicates no error has been encountered, and the driver has
              	processed the report
    - ret > 0	indicates that there was no parsing error, and the driver hasn't
    		processed the event.
    
    Calling hid_report_raw_event() has to be called appropriately so that it
    reflects what has been done by ->raw_event() callback, otherwise we might
    updates of the in-kernel structure are lost upon arrival of the report, which
    is wrong.
    
    Reported-and-tested-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
    Reported-and-tested-by: Daniel Leung <daniel.leung@xxxxxxxxxxxxxxx>
    Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>

:040000 040000 b61567a56058c05fb38864f834625b7910655476
7820cb9b91fb4d848a04b805d28da05c3ac8513b M      drivers

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https://bugs.launchpad.net/bugs/1269600

Title:
  [Macmini5,1] Kernel Panic when using Magic Touchpad

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Using an Apple Magic Touchpad from 13.04 upward is not possible
  because of a kernel panic. The Touchpad also works in 12.10, but i
  prefer LTS. In 13.04 the error is triggered randomly but quickly by
  dragging on the touchpad with two fingers.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: xorg 1:7.7+1ubuntu7
  ProcVersionSignature: Ubuntu 3.13.0-3.18-generic 3.13.0-rc8
  Uname: Linux 3.13.0-3-generic x86_64
  NonfreeKernelModules: wl
  .tmp.unity.support.test.0:

  ApportVersion: 2.13.1-0ubuntu1
  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
  CurrentDesktop: Unity
  CurrentDmesg:

  Date: Wed Jan 15 21:48:33 2014
  DistUpgraded: Fresh install
  DistroCodename: trusty
  DistroVariant: ubuntu
  DkmsStatus: bcmwl, 6.30.223.141+bdcom, 3.13.0-3-generic, x86_64: installed
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0126] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Apple Inc. Device [106b:00e6]
  InstallationDate: Installed on 2014-01-15 (0 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140115)
  MachineType: Apple Inc. Macmini5,1
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-3-generic root=UUID=384b5ac6-745f-45e0-a93c-f3d7e045ab6a ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/24/2012
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MM51.88Z.0077.B10.1201241549
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-8ED6AF5B48C039E1
  dmi.board.vendor: Apple Inc.
  dmi.board.version: Macmini5,1
  dmi.chassis.type: 16
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-8ED6AF5B48C039E1
  dmi.modalias: dmi:bvnAppleInc.:bvrMM51.88Z.0077.B10.1201241549:bd01/24/2012:svnAppleInc.:pnMacmini5,1:pvr1.0:rvnAppleInc.:rnMac-8ED6AF5B48C039E1:rvrMacmini5,1:cvnAppleInc.:ct16:cvrMac-8ED6AF5B48C039E1:
  dmi.product.name: Macmini5,1
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.50-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1
  xserver.bootTime: Wed Jan 15 21:46:51 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                 219
   vendor                                     ACR
  xserver.version: 2:1.14.5-1ubuntu2

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