2.6.38-11 proposed kernel appears to break apple magic trackpad

[Joshua R. Poulson]

I even tried re-pairing the device, but it does not show in lsinput and I get the following in /var/log/syslog:

Jul 22 20:45:51 bigthink64 kernel: [ 6748.499977] input: Apple Wireless Trackpad as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/bluetooth/hci0/hci0:11/input24
Jul 22 20:45:51 bigthink64 kernel: [ 6748.500148] magicmouse 0005:05AC:030E.000B: input,hidraw4: BLUETOOTH HID v1.60 Mouse [Apple Wireless Trackpad] on C4:17:FE:F0:EF:DF
Jul 22 20:45:51 bigthink64 kernel: [ 6748.500152] magicmouse 0005:05AC:030E.000B: unable to request touch data (2)
Jul 22 20:45:51 bigthink64 bluetoothd[1627]: Stopping discovery
Jul 22 20:45:51 bigthink64 kernel: [ 6748.581973] magicmouse: probe of 0005:05AC:030E.000B failed with error 2

This was working fine with the previous kernel.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-11-generic 2.6.38-11.47
ProcVersionSignature: Ubuntu 2.6.38-11.47-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: jrp 2370 F.... pulseaudio
 /dev/snd/controlC0: jrp 2370 F.... pulseaudio
 /dev/snd/controlC1: jrp 2370 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 56'
   Mixer name : 'Conexant CX20585'
   Components : 'HDA:14f15069,17aa218b,00100302'
   Controls : 8
   Simple ctrls : 5
Card1.Amixer.info:
 Card hw:1 'S51'/'Creative Technology SB X-Fi Surround 5.1 at usb-0000:00:1a.0-1.2.1.3, high spee'
   Mixer name : 'USB Mixer'
   Components : 'USB041e:3042'
   Controls : 1
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Power LED',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card2.Amixer.info:
 Card hw:2 'U0x46d0x821'/'USB Device 0x46d:0x821 at usb-0000:00:1a.0-1.2.1.4, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0821'
   Controls : 2
   Simple ctrls : 1
Card2.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 52
   Mono: Capture 52 [100%] [-19.00dB] [on]
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6MHT45WW-1.20'
   Mixer name : 'ThinkPad EC 6MHT45WW-1.20'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card3.Amixer.info:
 Card hw:3 'NVidia'/'HDA NVidia at 0xcdefc000 irq 16'
   Mixer name : 'Nvidia GPU 0a HDMI/DP'
   Components : 'HDA:10de000a,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Date: Fri Jul 22 20:49:03 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: LENOVO 4318CTO
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-2.6.38-11-generic root=UUID=c55f8ab1-4dd0-4f2b-87ee-15fd19908d3b ro rootflags=subvol=@ crashkernel=384M-2G:64M,2G-:128M quiet splash nomodeset video=uvesafb:mode_option=1280x800-24,mtrr=3,scroll=ywrap vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52.1
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-05-13 (70 days ago)
dmi.bios.date: 05/24/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 6NET77WW (1.38 )
dmi.board.name: 4318CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6NET77WW(1.38):bd05/24/2011:svnLENOVO:pn4318CTO:pvrThinkPadW510:rvnLENOVO:rn4318CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4318CTO
dmi.product.version: ThinkPad W510
dmi.sys.vendor: LENOVO