pb avec le SpeedStep d'un Pentium III Coppermine

Bonjour à tous. J'utilise un portable Toshiba Portege 3480CT et j'ai =

remarqué en m'en servant que le changement de fréquence du =
processeur
n'est pas effectif.

C'est un Pentium III Coppermine 600Mhz

J'ai installé différents paquets dont cpufreqd sans résultat. Si =

quelqu'un a une idée de ce que je peut faire, ça m'aiderait !

J'utilise Debian Sarge.

Merci d'avance pour vos réponses.

je joins les diverses informations que j'ai recueilli sur mon matériel =
:

/proc/cpuinfo:

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 3
cpu MHz : 500.137
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca =
cmov pat
pse36 mmx fxsr sse
bogomips : 987.13


lspci :

0000:00:00.0 Host bridge: Intel Corp. 82440MX Host Bridge (rev 01)
0000:00:00.1 Multimedia audio controller: Intel Corp. 82440MX AC'97
Audio Controller
0000:00:02.0 Communication controller: Lucent Microelectronics 56k
WinModem (rev 01)
0000:00:04.0 VGA compatible controller: S3 Inc. 86C270-294 Savage/IX-
MV (rev 11)
0000:00:07.0 Bridge: Intel Corp. 82440MX ISA Bridge (rev 01)
0000:00:07.1 IDE interface: Intel Corp. 82440MX EIDE Controller
0000:00:07.2 USB Controller: Intel Corp. 82440MX USB Universal Host
Controller
0000:00:07.3 Bridge: Intel Corp. 82440MX Power Management Controller
0000:00:09.0 IRDA controller: Toshiba America Info Systems FIR Port
Type-DO
0000:00:0b.0 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI =

to Cardbus Bridge with ZV Support (rev 20)
0000:00:0b.1 CardBus bridge: Toshiba America Info Systems ToPIC95 PCI =

to Cardbus Bridge with ZV Support (rev 20)
0000:05:00.0 Network controller: Intersil Corporation Intersil
ISL3890 [Prism GT/Prism Duette] (rev 01)

cpuid :

eax in eax ebx ecx edx
00000000 00000002 756e6547 6c65746e 49656e69
00000001 00000683 00000002 00000000 0383f9ff
00000002 03020101 00000000 00000000 0c040882

Vendor ID: "GenuineIntel"; CPUID level 2

Intel-specific functions:
Version 00000683:
Type 0 - Original OEM
Family 6 - Pentium Pro
Model 8 - Pentium III/Pentium III Xeon - internal L2 cache
Stepping 3
Reserved 0

Brand index: 2 [Pentium III processor]

Feature flags 0383f9ff:
FPU Floating Point Unit
VME Virtual 8086 Mode Enhancements
DE Debugging Extensions
PSE Page Size Extensions
TSC Time Stamp Counter
MSR Model Specific Registers
PAE Physical Address Extension
MCE Machine Check Exception
CX8 COMPXCHG8B Instruction
SEP Fast System Call
MTRR Memory Type Range Registers
PGE PTE Global Flag
MCA Machine Check Architecture
CMOV Conditional Move and Compare Instructions
FGPAT Page Attribute Table
PSE-36 36-bit Page Size Extension
MMX MMX instruction set
FXSR Fast FP/MMX Streaming SIMD Extensions save/restore
SSE Streaming SIMD Extensions instruction set

TLB and cache info:
01: Instruction TLB: 4KB pages, 4-way set assoc, 32 entries
02: Instruction TLB: 4MB pages, 4-way set assoc, 2 entries
03: Data TLB: 4KB pages, 4-way set assoc, 64 entries
82: 2nd-level cache: 256KB, 8-way set assoc, 32 byte line size
08: 1st-level instruction cache: 16KB, 4-way set assoc, 32 byte line
size
04: Data TLB: 4MB pages, 4-way set assoc, 8 entries
0c: 1st-level data cache: 16KB, 4-way set assoc, 32 byte line size