Power Manager put system in "sleep" on login screen

[thesubaru555]

Binary package hint: gnome-power-manager

If I let the system on the login screen after booting my system, it turn in sleep mode after a really short amount of time (4-5 seconds).
It's possible (if you are fast enough) to choose your account and enter your password, but if you try to login, a window will pop-up, saying that "Power Manager don't respond". After that, the system turn in sleep mode.

I'm able to exit the sleep mode, i can choose my account, enter password, and my desktop start with no problem. Sometimes, mouse pointer is missing (it's seem to be random).

I disabled power manager in system->preferences->startup applications (not sure exactly if the name is right, in French it's: Système->Préférences->Applications au démarrage), but it start even if it's disable.

I installed "boot-up manager", disabled all power manager program (acpid, acpi-support, apmd, laptop-mode), but the power manager still start on booting.

I added the command "apci=off" in menu.lst (in grub folder), but the power manager still start !
I can't find a other way to get a temporary fix.

I'm running Ubuntu 10.04 (Lucid) with Kernel 2.6.32-28-generic and Gnome 2.30.2, on a old Toshiba P30 laptop with no battery (i use the AC adapter).

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-power-manager 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-generic i686
Architecture: i386
Date: Sat Jan 29 23:15:17 2011
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
Lsusb:
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: TOSHIBA Satellite P30
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=UUID=7a7aab4b-c466-4845-bf1b-fba2c0c157e6 ro quiet splash apci=off
ProcEnviron:
 LANG=fr_CA.utf8
 SHELL=/bin/bash
SourcePackage: gnome-power-manager
dmi.bios.date: 09/03/2005
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.40
dmi.board.name: EEQ00/EFQ00
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:bvrV1.40:bd09/03/2005:svnTOSHIBA:pnSatelliteP30:pvrPSP30C-JC100E:rvnTOSHIBA:rnEEQ00/EFQ00:rvrNull:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite P30
dmi.product.version: PSP30C-JC100E
dmi.sys.vendor: TOSHIBA