Suspend not working via power button but via menu

[Stefan Beller]

So when I press the power button a menu appears in the middle of the screen having 4 options:
Suspend, Restart, Cancel, Shutdown.
When selecting "Suspend", nothing happens.

However if I use the mouse to click at the icon in the upper right corner, where a menu pops up, having these entries
"About this computer"
Ubuntu help
--
System Settings
--
Lock
<UserName>
--
Log out ...
Suspend
Restart...
Shutdown...

I can click on suspend and suspend works as expected.
Sidenote: there is a "..." missing after Suspend in the menu.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.8.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu4
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,gnomecompat,resize,snap,compiztoolbox,place,move,vpswitch,regex,imgpng,mousepoll,grid,session,unitymtgrabhandles,animation,wall,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
Date: Mon Oct 22 11:24:10 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MarkForUpload: True
SourcePackage: unity
UpgradeStatus: Upgraded to quantal on 2012-10-20 (1 days ago)

[RaduStoica (radumstoica)]

Hello,

  Thank you for reporting this. Could you please add the computer model you are running?

[Stefan Beller (stefanbeller)]

Hello Radu,
thanks for looking into this issue.
It's a Dell Latitude E6520.
If you need any further specs (revision of mainboard etc.), please instruct me how to obtain these.

[Daniel van Vugt (vanvugt)]

Confirmed. On all my quantal machines, Power Button > Suspend does not work. However the Unity top-right menu > Suspend does work.

[RaduStoica (radumstoica)]

Hello,

   You can also try running apport-collect 1069715 . This should automatically collect some more information from your computer and attach it to this bug report.

  Thanks.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Martin Pitt (pitti)]

g-power-manager merely contains the gnome-power-statistics program these days; it's gnome-session which handles the power button (or perhaps gnome-settings-daemon's power plugin).

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1041137, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.