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[Patrick Pfeifer <550054@xxxxxxxxxxxxxxxxxx>]

In Ubuntu Natty (11.04), you can try this
https://launchpad.net/~patrick2000/+archive/pathos/+sourcepub/1946736/+listing-archive-extra
 ppa
https://launchpad.net/~patrick2000/+archive/pathos/+packages
package, which fixes it for me.

The problem, as I picked up somewhere, is that "xset dpms force on" /
"xset dpms force off", which is ~ how gpm unblanks/blanks the screen,
affects all attached screens. If the laptops built-in display is not
turned off by the *hardware* (without help of gpm), gpm (I think :-))
turns it off via dpms when it is closed. Now if you blank the displays
during idle time using dpms, they have to be unblanked at some time
again. At that time, the internal display could now unintentionally be
turned on as well (if it is not completeley turned of by the hardware
anyway). I don't know how/if this is solved in oneiric. Phew... as said:
works for me - and probably most other laptops.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-power-manager in Ubuntu.
https://bugs.launchpad.net/bugs/550054

Title:
  External Monitor not Sleeping with Laptop Lid Closed

Status in Gnome Powermanager:
  New
Status in “gnome-power-manager” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: gnome-power-manager

  In Ubuntu 10.04, the gnome-power-manager seems to have no effect on my
  laptop. I am running my Toshiba laptop with an external monitor and
  the laptop LCD disabled. I've set the gnome-power manager to turn the
  screen off after 10 minutes (the time is actually irrelevant), but the
  screen will never turn off. It doesn't matter if I have the
  screensaver set to activate or not. It also doesn't matter how much
  time I tell the manager to wait before powering down the monitor. The
  monitor stays on no matter what.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: gnome-power-manager 2.29.91-0ubuntu9
  ProcVersionSignature: Ubuntu 2.6.32-17.26-generic 2.6.32.10+drm33.1
  Uname: Linux 2.6.32-17-generic i686
  Architecture: i386
  Date: Sun Mar 28 00:18:29 2010
  GnomeSessionIdleInhibited: No
  GnomeSessionInhibitors: None
  GnomeSessionSuspendInhibited: No
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
  MachineType: TOSHIBA Satellite M105
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-17-generic root=UUID=188be98a-11ff-4e0a-a433-bfecef18c900 ro quiet splash
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: gnome-power-manager
  dmi.bios.date: 09/13/2007
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: V2.90
  dmi.board.name: HAQAA
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Null
  dmi.chassis.asset.tag: *
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnTOSHIBA:bvrV2.90:bd09/13/2007:svnTOSHIBA:pnSatelliteM105:pvrPSMA0U-0F201T:rvnTOSHIBA:rnHAQAA:rvrNull:cvnTOSHIBA:ct10:cvrN/A:
  dmi.product.name: Satellite M105
  dmi.product.version: PSMA0U-0F201T
  dmi.sys.vendor: TOSHIBA

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