Lars Noodén, thank you for attaching the requested file. Regarding your 
comments 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881830/comments/33 :
>"'xev | grep -i button > ~/xev' does nothing either. Keystrokes are still 
>counting as mouse clicks making it all but impossible to type"

As per 
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_at_least_one_of_the_Touchpad_features_work.2C_but_does_not_work_correctly_and_as_expected
 could you please excute instead:
xev > ~/xev.log

then perform the relevant actions noted in
https://wiki.ubuntu.com/DebuggingTouchpadDetection/xev , and attach
xev.log to this report?

** Description changed:

  On a MacBookPro8,2, the track pad does not respond properly. Single
  clicks are nearly always interpreted as double clicks.
  
- $ lsb_release -rd
- Description: Ubuntu 11.10
- Release: 11.10
+ Attachments as per
+ 
https://wiki.ubuntu.com/DebuggingTouchpadDetection#In_case_at_least_one_of_Touchpad_features_works_but_does_not_work_correctly_and_as_expected
+ :
+ 
+ xmodmap:
+ 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881830/+attachment/3399935/+files/xmodmap
+ 
+ * Missing xev.
+ 
+ xinput:
+ 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881830/+attachment/3399937/+files/xinput
+ 
+ evtest
+ 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/881830/+attachment/3403873/+files/evtest
+ 
  ---
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  DistroRelease: Ubuntu 11.10
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64+mac 
(20111012)
  Package: linux (not installed)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  Tags:  oneiric running-unity
  Uname: Linux 3.1.0-999-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: cdrom dialout lpadmin plugdev sambashare
- --- 
+ ---
  ApportVersion: 2.6.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC2:  lars       2156 F.... pulseaudio
-  /dev/snd/controlC0:  lars       2156 F.... pulseaudio
-  /dev/snd/controlC1:  lars       2156 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC2:  lars       2156 F.... pulseaudio
+  /dev/snd/controlC0:  lars       2156 F.... pulseaudio
+  /dev/snd/controlC1:  lars       2156 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  CurrentDmesg:
-  Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg 
-'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
-  dmesg: write failed: Broken pipe
+  Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg 
-'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
+  dmesg: write failed: Broken pipe
  DistroRelease: Ubuntu 12.10
  InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac 
(20120920)
  IwConfig:
-  eth0      no wireless extensions.
-  
-  lo        no wireless extensions.
+  eth0      no wireless extensions.
+ 
+  lo        no wireless extensions.
  MachineType: Apple Inc. MacBookPro8,2
  Package: linux (not installed)
  ProcEnviron:
-  LANGUAGE=en_US:en
-  TERM=xterm
-  PATH=(custom, no user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  LANGUAGE=en_US:en
+  TERM=xterm
+  PATH=(custom, no user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-15-generic 
root=UUID=a8a325fd-0b63-4f6f-92c2-53eff4b3fc05 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4
  RfKill:
-  0: hci0: Bluetooth
-       Soft blocked: no
-       Hard blocked: no
+  0: hci0: Bluetooth
+   Soft blocked: no
+   Hard blocked: no
  Tags:  quantal
  Uname: Linux 3.5.0-15-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
-  
+ 
  WifiSyslog:
-  
+ 
  dmi.bios.date: 01/24/12
  dmi.bios.vendor: Apple Inc.
  dmi.bios.version: MBP81.88Z.0047.B27.1201241646
  dmi.board.asset.tag: Base Board Asset Tag#
  dmi.board.name: Mac-94245A3940C91C80
  dmi.board.vendor: Apple Inc.
  dmi.board.version: MacBookPro8,2
  dmi.chassis.type: 10
  dmi.chassis.vendor: Apple Inc.
  dmi.chassis.version: Mac-94245A3940C91C80
  dmi.modalias: 
dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80:
  dmi.product.name: MacBookPro8,2
  dmi.product.version: 1.0
  dmi.sys.vendor: Apple Inc.
- --- 
- ApportVersion: 2.6.1-0ubuntu3
- Architecture: amd64
- AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC2:  lars       2187 F.... pulseaudio
-  /dev/snd/controlC0:  lars       2187 F.... pulseaudio
-  /dev/snd/controlC1:  lars       2187 F.... pulseaudio
- CRDA: Error: [Errno 2] No such file or directory
- CurrentDmesg:
-  Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg 
-'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
-  dmesg: write failed: Broken pipe
- DistroRelease: Ubuntu 12.10
- InstallationMedia: Lubuntu 12.10 "Quantal Quetzal" - Alpha amd64+mac 
(20120920)
- IwConfig:
-  eth0      no wireless extensions.
-  
-  lo        no wireless extensions.
- MachineType: Apple Inc. MacBookPro8,2
- Package: linux (not installed)
- ProcFB: 0 radeondrmfb
- ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic 
root=UUID=a8a325fd-0b63-4f6f-92c2-53eff4b3fc05 ro quiet splash vt.handoff=7
- ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
- RfKill:
-  0: hci0: Bluetooth
-       Soft blocked: no
-       Hard blocked: no
- Tags:  quantal
- Uname: Linux 3.5.0-17-generic x86_64
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups:
-  
- WifiSyslog:
-  
- dmi.bios.date: 01/24/12
- dmi.bios.vendor: Apple Inc.
- dmi.bios.version: MBP81.88Z.0047.B27.1201241646
- dmi.board.asset.tag: Base Board Asset Tag#
- dmi.board.name: Mac-94245A3940C91C80
- dmi.board.vendor: Apple Inc.
- dmi.board.version: MacBookPro8,2
- dmi.chassis.type: 10
- dmi.chassis.vendor: Apple Inc.
- dmi.chassis.version: Mac-94245A3940C91C80
- dmi.modalias: 
dmi:bvnAppleInc.:bvrMBP81.88Z.0047.B27.1201241646:bd01/24/12:svnAppleInc.:pnMacBookPro8,2:pvr1.0:rvnAppleInc.:rnMac-94245A3940C91C80:rvrMacBookPro8,2:cvnAppleInc.:ct10:cvrMac-94245A3940C91C80:
- dmi.product.name: MacBookPro8,2
- dmi.product.version: 1.0
- dmi.sys.vendor: Apple Inc.

-- 
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https://bugs.launchpad.net/bugs/881830

Title:
  [MacBookPro8,2] Trackpad single clicks nearly always double clicks

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