Notebook doesn't not wake up after suspend to ram (pm-suspend)

HP Pavilion dv6 2055er.
Steps to reproduce:
1) run "sudo pm-suspend";
2) system suspends to ram;
3) push any key;
4) watching turning on leds(even WLAN-led turns on, that manipulates by ath9k kernel module), fan, HDD(only 2 moves). No monitor power on, no react to switching CapsLock, or NumLock, no react to power button, ctrl+alt+F1, crtl+alt+del and overs combinations and HDD stays quiet...

In /var/log/pm-suspend there is no log of waking up, only suspendig.

I've tryed to add to /etc/pm/config.d/modules different kernel modules to unload it before suspending:
firewire_ohci, sdhci_pci, video, zram, ath9k, vboxpci, vboxnetadp, vboxnetflt, vboxdrv, fglrx and usbhid in different combinations and got messages about success or not unloading these modules in log, but useless.

 I've installed uswsusp and tryed to use s2ram, but result is exactly similar. I've tryed to remove fglrx, but useless. I've tryed to install mainlain kernel, but no difference.

In Windows everything is ok. Also on ArchLinux I saw this mode warkable.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: pm-utils 1.4.1-9
ProcVersionSignature: Ubuntu 3.2.0-30.48-generic-pae 3.2.27
Uname: Linux 3.2.0-30-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu13
Architecture: i386
Date: Mon Sep 17 10:49:52 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120328)
PackageArchitecture: all
SourcePackage: pm-utils
UpgradeStatus: No upgrade log present (probably fresh install)