Public bug reported:

Steps to reproduce:
Select power button on the top right corner with left button click.
Select suspend from the drop down menu.

What happens:
Screen goes blank (black) with background light still on.
Pressing power button on device does nothing.

What should happen:
Background light from the screen should go off.
Power button press should restore the system.

Reproducible: yes (tried only 2 times though)

Kernel version:
2.6.38-5-generic-pae

Restricted drivers for Graphics card are not installed.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-5-generic-pae 2.6.38-5.32
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-5.32-generic-pae 2.6.38-rc6
Uname: Linux 2.6.38-5-generic-pae 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: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  iced       1337 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd7400000 irq 44'
   Mixer name   : 'Intel IbexPeak HDMI'
   Components   : 'HDA:14f15069,104313f3,00100302 
HDA:80862804,80860101,00100000'
   Controls      : 12
   Simple ctrls  : 6
Date: Sun Feb 27 19:49:40 2011
HibernationDevice: RESUME=UUID=eafe40fc-c858-4d32-819c-57bc3f8675a2
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: ASUSTeK Computer Inc. K52Jc
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-5-generic-pae 
root=UUID=71490a24-17f6-4b02-ae78-38906484a57d ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-5-generic-pae N/A
 linux-backports-modules-2.6.38-5-generic-pae N/A
 linux-firmware 1.47
SourcePackage: linux
dmi.bios.date: 08/03/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K52Jc.212
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K52Jc
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrK52Jc.212:bd08/03/2010:svnASUSTeKComputerInc.:pnK52Jc:pvr1.0:rvnASUSTeKComputerInc.:rnK52Jc:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: K52Jc
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 kernel-power natty needs-upstream-testing resume 
suspend

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https://bugs.launchpad.net/bugs/726137

Title:
  Suspend hangs the system.

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