[Lenovo T540p] Accelerometer cannot be detected on 12.04.5

CID: 201309-14211 Lenovo T540p

According to this page:
http://support.lenovo.com/us/en/documents/pd029726

There should be an accelerometer on this system, but it can't be detected at all.

Output from udev_resource attached.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57~precise1 [modified: boot/vmlinuz-3.13.0-32-generic]
ProcVersionSignature: Ubuntu 3.13.0-32.57~precise1-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-32-generic.
ApportVersion: 2.0.1-0ubuntu17.7
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 1: PCH [HDA Intel PCH], device 0: ALC292 Analog [ALC292 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1906 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1906 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'HDMI'/'HDA Intel HDMI at 0xf2630000 irq 48'
   Mixer name : 'Intel Haswell HDMI'
   Components : 'HDA:80862807,80860101,00100000'
   Controls : 21
   Simple ctrls : 3
Card1.Amixer.info:
 Card hw:1 'PCH'/'HDA Intel PCH at 0xf2634000 irq 49'
   Mixer name : 'Realtek ALC292'
   Components : 'HDA:10ec0292,17aa2210,00100001'
   Controls : 22
   Simple ctrls : 10
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw unknown'
   Mixer name : 'ThinkPad EC (unknown)'
   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]
Date: Thu Sep 18 03:51:47 2014
HibernationDevice: RESUME=UUID=b8c8ba7e-fe13-498a-a864-e61be51434c8
InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64 (20140807.1)
MachineType: LENOVO 20BFZ052US
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic root=UUID=93b275d1-0513-474e-bbad-07e19aeaaac8 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-32-generic N/A
 linux-backports-modules-3.13.0-32-generic N/A
 linux-firmware 1.79.16
SourcePackage: linux-lts-trusty
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/20/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: GMET62N1 (2.10 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20BFZ052US
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrGMET62N1(2.10):bd03/20/2014:svnLENOVO:pn20BFZ052US:pvrThinkPadT540p:rvnLENOVO:rn20BFZ052US:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20BFZ052US
dmi.product.version: ThinkPad T540p
dmi.sys.vendor: LENOVO