Speedstep not working

[indifference]

Hello,

I'm trying to run acpi-cpufreq in my laptop, but without sucess.
In Ubuntu Feisty everything works fine, but not in Hardy (in Gutsy I didn't test it).

When I try load the module acpi-cpufreq it shows:

FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.24-17-generic/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device

In the boot messages:


[ 9.118245] ACPI: Looking for DSDT in initramfs... error, file /DSDT.aml not found.
....
[ 31.884921] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126]
....
[ 269.465523] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126]
[ 503.785571] ACPI Exception (processor_perflib-0234): AE_NOT_FOUND, Evaluating _PSS [20070126]

My hardware:

description: Notebook
product: TravelMate 2300
vendor: Acer
version: Rev 1
serial: LXT73050254470732EEM00
width: 32 bits
capabilities: smbios-2.31 dmi-2.31
configuration: boot=oem-specific chassis=notebook uuid=601B72A8-32DA-D811-9837-00C09F676B74
*-core
description: Motherboard
product: TravelMate 2300
vendor: Acer
physical id: 0
version: Rev 1.0
serial: LXT73050254470732EEM00
*-firmware
description: BIOS
vendor: ACER
physical id: 0
version: 3A07 (08/03/2004)
size: 106KiB
capacity: 448KiB
capabilities: isa pci pcmcia pnp apm upgrade shadowing escd cdboot int13floppy720 int5printscreen int9keyboard int14serial int17printer acpi usb sm
artbattery biosbootspecification
*-cpu
description: CPU
product: Intel(R) Pentium(R) M processor 1.50GHz
vendor: Intel Corp.
physical id: 4
bus info: cpu@0
version: 6.13.6
slot: uFCPGA2
size: 1500MHz
capacity: 1500MHz
width: 32 bits
clock: 400MHz
capabilities: fpu fpu_exception wp vme de pse tsc msr mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe up bts est tm2


Can you help me?

Thanks for reading,

Pedro Saraiva