cannot start my toshiba 1130 Z31 without acpi=off or acpi=ht

I cannot start my Toshiba Satellite 1130 Z31 without acpi=off or acpi=ht since Ubuntu 8.10. In Ubuntu 8.04 everythink was working fine.

lsb_release -rd:
Description: Ubuntu karmic (development branch)
Release: 9.10

What kind of information do you need?

ProblemType: Bug
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: micwin 1778 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'I82801DBICH4'/'Intel 82801DB-ICH4 with ALC202 at irq 10'
   Mixer name : 'Realtek ALC202 rev 0'
   Components : 'AC97a:414c4740'
   Controls : 37
   Simple ctrls : 23
CheckboxSubmission: 91eba2f77242bf2540e3d67160b0b719
CheckboxSystem: b1865df84255b8716d3bcc269ff410d1
Date: Wed Oct 7 11:56:05 2009
DistroRelease: Ubuntu 9.10
HibernationDevice: RESUME=UUID=64a84a60-7a3b-4c02-86bd-83e343b8ca22
Lsusb:
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: TOSHIBA Satellite 1130
Package: linux-image-2.6.31-12-generic 2.6.31-12.39
PccardctlIdent:
 Socket 0:
   no product info available
 Socket 1:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
 Socket 1:
   no card
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.31-12-generic root=/dev/mapper/nb01-rootfs ro acpi=off quiet splash
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-12.39-generic
RelatedPackageVersions: linux-firmware 1.21
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
Uname: Linux 2.6.31-12-generic i686
XsessionErrors:
 (gnome-settings-daemon:1793): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1793): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:1825): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:1842): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (gnome-appearance-properties:2262): Gdk-CRITICAL **: gdk_display_sync: assertion `GDK_IS_DISPLAY (display)' failed
dmi.bios.date: 09/02/2003
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.70A
dmi.board.name: BTW30
dmi.board.vendor: TOSHIBA
dmi.board.version: Null
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV1.70A:bd09/02/2003:svnTOSHIBA:pnSatellite1130:pvrPS113E-1Y13S-GR:rvnTOSHIBA:rnBTW30:rvrNull:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite 1130
dmi.product.version: PS113E-1Y13S-GR
dmi.sys.vendor: TOSHIBA