Xorg segfault after resuming from suspend

q@quorra:~$ lsb_release -rd
Description: Ubuntu 12.04 LTS
Release: 12.04
q@quorra:~$ apt-cache policy xorg
xorg:
  Installed: 1:7.6+12ubuntu1
  Candidate: 1:7.6+12ubuntu1
  Version table:
 *** 1:7.6+12ubuntu1 0
        500 http://mirror.yandex.ru/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

resumed from suspend, restored chromium (18.0.1025.168) window, typed couple symbols to omni bar and Xorg crashed when suggestion list was shown

q@quorra:~$ dmesg | tail -n 5
[10593.000311] Xorg[1172]: segfault at 7f8c00000010 ip 00007f8cd96d0188 sp 00007ffff0db3ed0 error 4 in Xorg[7f8cd95a8000+1f0000]
[10600.089303] ACPI Error: Needed [Integer/String/Buffer], found [Reference] ffff880100def8b8 (20110623/exresop-422)
[10600.089311] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20110623/dswexec-460)
[10600.089318] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.AF03] (Node ffff8801b4c53280), AE_AML_OPERAND_TYPE (20110623/psparse-536)
[10600.089330] ACPI Error: Method parse/execution failed [\_SB_.PCI0.VGA_.ATIF] (Node ffff8801b4c53000), AE_AML_OPERAND_TYPE (20110623/psparse-536)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
NonfreeKernelModules: fglrx
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
Date: Sat Aug 18 20:39:33 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
 fglrx, 8.960, 3.2.0-23-generic, x86_64: installed
 samsung_laptop, 2.0, 3.2.0-23-generic, x86_64: installed
 vboxhost, 4.1.18, 3.2.0-23-generic, x86_64: installed
ExtraDebuggingInterest: Yes,
GraphicsCard:
 Advanced Micro Devices [AMD] nee ATI Device [1002:9900] (prog-if 00 [VGA controller])
   Subsystem: Samsung Electronics Co Ltd Device [144d:c0dd]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
JockeyStatus:
 xorg:fglrx_updates - ATI/AMD proprietary FGLRX graphics driver (post-release updates) (Proprietary, Disabled, Not in use)
 xorg:fglrx - ATI/AMD proprietary FGLRX graphics driver (Proprietary, Enabled, In use)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 355V4C/355V4X/355V5C/355V5X/356V4C/356V4X/356V5C/356V5X/3445VC/3445VX/3545VC/3545VX
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-23-generic root=/dev/mapper/hostname-root ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/08/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P01AAN
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: NP355V5C-A01RU
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: BOARD REVISION 00
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01AAN:bd05/08/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn355V4C/355V4X/355V5C/355V5X/356V4C/356V4X/356V5C/356V5X/3445VC/3445VX/3545VC/3545VX:pvrP01AAN.013.CP:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP355V5C-A01RU:rvrBOARDREVISION00:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 355V4C/355V4X/355V5C/355V5X/356V4C/356V4X/356V5C/356V5X/3445VC/3445VX/3545VC/3545VX
dmi.product.version: P01AAN.013.CP
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
version.compiz: compiz 1:0.9.7.8-0ubuntu1.2
version.fglrx-installer: fglrx-installer N/A
version.ia32-libs: ia32-libs 20090808ubuntu36
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3.1
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.6
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2