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[Sam Gentle <sam@xxxxxxxxxxxxx>]

I've just managed to get a chance to test this. Instead of installing
the dev ISO I just upgraded using do-release-upgrade -d. I've been
testing for a couple of hours and have not experienced the issue.

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https://bugs.launchpad.net/bugs/1204369

Title:
  Bluetooth keyboard and trackpad freezing and sticking since 13.04
  Raring upgrade

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hi there,

  I recently upgraded my mid-2011 Mac Mini (aka Macmini5,1) to Ubuntu
  13.04 Raring from 12.10. Since then I've been experiencing frequent
  freezes on my bluetooth keyboard and trackpad. By freezes I mean this:

  If I'm typing, keys will occasssssssssssssionally stick or briefly not
  respond. My trackpad is the same, except that the touch/click inputs
  will be stuck on, meaning that single-finger clicks will be
  interpreted as two-finger (right) clicks and the trackpad will not
  move. I can only recccccccccccccccover from this situation by wildly
  tapping and clicking the trackpad.

  The freezes happen at random intervals, so I don't think it's a result
  of any kind of regular timeout. But frequently enough that on average
  they happen every few minutes. They don't last long (the above were
  genuine examples of briefly stuck keys) so my suspicion is that it's
  some kind of temporary bluetooth dropout/reconnection. I don't see any
  lights flashing on my keyboard or trackpad, which usually happens in
  the event of a full disconnection.

  The only relevant log messages I can see are a bunch of these in syslog and kern.log:
  kernel: [487681.166937] power_supply hid-90:84:0d:fd:c9:e5-battery: driver failed to report `capacity' property: -5

  Which I suspect is a red herring. It's definitely not a hardware
  issue, as this wasn't happening with the exact same hardware setup
  prior to my 13.04 upgrade. The machine has since been moved from my
  office to my house, so I don't think there's any
  environmental/wireless interference factors at play. I've replaced the
  batteries as well.

  Let me know if there's any other information I can give that might
  help you track down this bug. It is super irritating so I am very
  motivated to help. I can probably get accccccccccccccess to a usb
  bluetooth dongle if that would be useful in isolating whether it's a
  problem specific to the Mac Mini's bluetooth controller.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-26-generic 3.8.0-26.38
  ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2
  Uname: Linux 3.8.0-26-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.9.2-0ubuntu8.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  samg       5655 F.... pulseaudio
  Date: Wed Jul 24 15:56:36 2013
  HibernationDevice: RESUME=UUID=19d01878-e65b-4948-ba0b-94e44ff826d0
  InstallationDate: Installed on 2012-11-14 (252 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Apple Inc. Macmini5,1
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-26-generic root=UUID=cf067d4c-850c-40fa-a333-ecc5f8d81b08 ro rootdelay=120
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-26-generic N/A
   linux-backports-modules-3.8.0-26-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-06-06 (47 days ago)
  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.

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