Hangs on hibernate

I have a Dell Inspiron 6400 laptop with ATI 1400 video.
After upgrade to Maveric hibernate started to behave in very weird way.

If I press 'power' button just after I log in (i.e. almost nothing is started) - system hibernates and awakes with out any issues.
I have to notice here, that I normally (since, or even before Lucid) get errors on the console during hibernate. They are about bluetooth adaptor, something like 'cannot retransmit', I get these messages before linux starts to dump memory to disk (I can see this on HDD light).

If I start for example firefox (I have a lot of tabs open, FF takes about 600MB) and then press 'power' button screen goes black and I see only cursor in upper left conner. I do no see those error messages about bluetooth and system doesn't dump memory to disk, is just hangs here. I still can switch consoles, but I cannot type anything there - I guess it's because processes already have been frozen at this point.

I have 3.5GB of ram and 6GB of swap. This all was working perfectly with Lucid. It stopped working after I updated to Maveric without any hardware or configuration changes.

 I tried Maveric livecd with same results. It successfully hibernates after login. But if I start firefox on same profile (with a lot of tabs) - it hangs during hibernate with same symptoms.

I tried to play with boot command line parameters 'nomodeset' and 'pci=nomsi' without any results. I usually have nomodeset because otherwise X gets very slow.

I guess you are currently very busy with new release, but I hope you could look into this. I'd be happy to provide any details or do any testing if you could tell me what information is required.
Thanks.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image (not installed)
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kolya 1939 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xefffc000 irq 21'
   Mixer name : 'SigmaTel STAC9200'
   Components : 'HDA:83847690,102801bd,00102201 HDA:14f12bfa,14f100c3,00090000'
   Controls : 11
   Simple ctrls : 6
Date: Mon Oct 11 23:56:55 2010
HibernationDevice: RESUME=UUID=cfd7af30-4a4f-45bb-ba89-a0f0eff42c82
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Dell Inc. MM061
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=373b88e9-4be7-4419-9e8d-2a0f4a355367 ro nomodeset pci=nomsi quiet splash
ProcEnviron:
 LANGUAGE=ru_RU:ru:en_GB:en
 PATH=(custom, user)
 LANG=ru_RU.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
dmi.bios.date: 06/13/2007
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A17
dmi.board.name: 0XD720
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA17:bd06/13/2007:svnDellInc.:pnMM061:pvr:rvnDellInc.:rn0XD720:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: MM061
dmi.sys.vendor: Dell Inc.