[Bug 987220] Re: System does not power off reliably when "Shut Down" chosen from GUI

[Stefan Essl]

I've installed Linux Mint 13 (Maya) Ubuntu 12.04 based on 6 PCs for
educational purpose.

Shutdown via GUI does not work at all. The PCs remain powered on, but no
input is possible....

I tried to turn them off on a console but only one manages to power off after 
    :~$ sudo shutdown -h now:~$
but not always...

The others show the line
   [876.9876] Power down.
forever until i turn them off manually....

After googling around I've found the kernel parameters
  noapic nolapic acpi=off
...but it didn't change the problem really, sometimes it worked, sometimes not...

Then I read the posting from 
  plum7500 (plum01) wrote on 2012-06-13: 
and i tried:
    :~$ sudo su -
    :~# shutdown -h now 

I use kernel 3.2.023
The PCs have nvidia cards...could this be the problem?

I tried to switch from "nvidia current" to "nvidia current-updates" on one PC:
After restart i tried to turn off via GUI and it did not power down...
I tried again as root on the console, the PC had noapic and nolapic options as kernel parameters:
Ctrl-Alt-F1 => console
loggedin as user
    :~$ sudo su -
    :~# shutdown -h now 
...and it did shutdown....
 

All PCs used to power off since Ubuntu 8.04 ....what can I do? BIOS ACPI
settings?

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https://bugs.launchpad.net/bugs/987220

Title:
  System does not power off reliably when "Shut Down" chosen from GUI

Status in The Session Menu:
  Incomplete
Status in “gnome-session” package in Ubuntu:
  Invalid
Status in “indicator-session” package in Ubuntu:
  Invalid
Status in “linux” package in Ubuntu:
  Confirmed
Status in “upstart” package in Ubuntu:
  Invalid
Status in “gnome-session” source package in Precise:
  Invalid
Status in “indicator-session” source package in Precise:
  Invalid
Status in “linux” source package in Precise:
  Confirmed
Status in “upstart” source package in Precise:
  Invalid

Bug description:
  Shutting down the computer using the menue does not work always correct. It often does not complete turn off the computer. The power LED and the LED of the bluetooth unit remain on. Also the fan is still running and won't stop. 
  Shutting down the computer with "sudo shutdown -h now" using the terminal works fine.

  I am using a Dell Inspiron 1720.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: indicator-session 0.3.96-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: i386
  Date: Mon Apr 23 12:26:10 2012
  ExecutablePath: /usr/lib/indicator-session/gtk-logout-helper
  InstallationMedia: Kubuntu 10.04.1 LTS "Lucid Lynx" - Release i386 (20100816.2)
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
  SourcePackage: indicator-session
  UpgradeStatus: Upgraded to precise on 2012-04-21 (1 days ago)
  --- 
  ApportVersion: 2.0.1-0ubuntu7
  Architecture: i386
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
  NonfreeKernelModules: nvidia
  Package: upstart
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.2.0-24.37-generic-pae 3.2.14
  Tags:  precise
  Uname: Linux 3.2.0-24-generic-pae i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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