[natty] Suspend fails on thinkpad x301 after upgrade from maverick [SOLVED - Workaround]

Binary package hint: linux-image-2.6.37-12-generic

On natty system suspend fails on my thinkpad x301 after upgrade from maverick (which worked fine)
the kernel package is linux-image-2.6.37-12-generic at version 2.6.37-12.26
relevant dmesg output:

[ 8262.127328] PM: Syncing filesystems ... done.
[ 8262.135635] PM: Preparing system for mem sleep
[ 8262.290993] Freezing user space processes ... (elapsed 0.01 seconds) done.
[ 8262.310906] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
[ 8262.330194] PM: Entering mem sleep
[ 8262.330313] Suspending console(s) (use no_console_suspend to debug)
[ 8262.340404] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[ 8262.345588] sd 0:0:0:0: [sda] Stopping disk
[ 8262.443279] PM: suspend of drv:sd dev:0:0:0:0 complete after 102.880 msecs
[ 8262.443311] PM: suspend of drv:scsi dev:target0:0:0 complete after 102.865 msecs
[ 8262.443350] PM: suspend of drv:scsi dev:host0 complete after 102.794 msecs
[ 8264.360169] tpm_tis 00:0a: tpm_transmit: tpm_send: error -62
[ 8264.360180] legacy_suspend(): pnp_bus_suspend+0x0/0xa0 returns -62
[ 8264.360185] PM: suspend of drv:tpm_tis dev:00:0a complete after 1992.705 msecs
[ 8264.360189] PM: Device 00:0a failed to suspend: error -62
[ 8264.360192] PM: Some devices failed to suspend
[ 8264.361728] sd 0:0:0:0: [sda] Starting disk
[ 8264.462873] PM: resume of devices complete after 102.675 msecs
[ 8264.463084] PM: resume devices took 0.100 seconds
[ 8264.463170] PM: Finishing wakeup.
[ 8264.463172] Restarting tasks ... done.
[ 8264.522051] video LNXVIDEO:00: Restoring backlight state

it's not clear to me which device failed to suspend (lspci below)
[ 8264.360169] tpm_tis 00:0a: tpm_transmit: tpm_send: error -62
[ 8264.360180] legacy_suspend(): pnp_bus_suspend+0x0/0xa0 returns -62
[ 8264.360185] PM: suspend of drv:tpm_tis dev:00:0a complete after 1992.705 msecs
[ 8264.360189] PM: Device 00:0a failed to suspend: error -62
the second last line says suspend complete, the last says failed.

blk@thinky:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
03:00.0 Network controller: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection

completely reproducible by me, just ask if i can provide further clues.
thanks
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: blk 1401 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0620000 irq 46'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa211f,00100000'
   Controls : 12
   Simple ctrls : 7
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 6EHT11WW-1.05'
   Mixer name : 'ThinkPad EC 6EHT11WW-1.05'
   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]
DistroRelease: Ubuntu 11.04
EcryptfsInUse: Yes
MachineType: LENOVO 2774A29
Package: linux (not installed)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-12-generic root=UUID=2e06b239-79a6-451b-99ad-722e75012179 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Regression: Yes
RelatedPackageVersions:
 linux-restricted-modules-2.6.37-12-generic N/A
 linux-backports-modules-2.6.37-12-generic N/A
 linux-firmware 1.45
Reproducible: Yes
Tags: natty kernel-power suspend resume regression-release needs-upstream-testing
Uname: Linux 2.6.37-12-generic x86_64
UserGroups: adm admin audio cdrom dialout fuse haldaemon kqemu kvm lpadmin plugdev sambashare video
WpaSupplicantLog:

dmi.bios.date: 08/10/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6EET52WW (3.12 )
dmi.board.name: 2774A29
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:bvr6EET52WW(3.12):bd08/10/2010:svnLENOVO:pn2774A29:pvrThinkPadX301:rvnLENOVO:rn2774A29:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2774A29
dmi.product.version: ThinkPad X301
dmi.sys.vendor: LENOVO