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Date: Thu, 24 Feb 2005 15:02:34 -0800
From: Nate Lawson <nate@root.org>
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To: John Baldwin <jhb@FreeBSD.org>
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cc: acpi@FreeBSD.org
Subject: Re: cpufreq not happy on my laptop
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John Baldwin wrote:
> Nate,
> 
> First off, this is the big green laptop that has a desktop P4 in it, so I'm
> aware that this is very much an edge case.  The system does support ACPI duty
> width type throttling and even has the T2 and T3 constants for use with _PSV.
> I tried cpufreq(4) on it with the recent updates and it's not too happy.
> Before the p4tcc driver was added, this is what I got:
>
> After building a kernel from yesterday, I get this output:
> 
> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (2392.25-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0xf24  Stepping = 4
>   Features=0x3febf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,P
> AT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM>
> ...
> cpu0: <ACPI CPU (3 Cx states)> on acpi0
> acpi_throttle0: <ACPI CPU Throttling> on cpu0
> p4tcc0: <CPU Frequency Thermal Control> on cpu0
> acpi_perf0: <ACPI CPU Frequency Control> on cpu0
> 
> dev.cpu.0.%desc: ACPI CPU (3 Cx states)
> dev.cpu.0.%driver: cpu
> dev.cpu.0.%location: handle=\_PR_.CPU0
> dev.cpu.0.%pnpinfo: _HID=none _UID=0
> dev.cpu.0.%parent: acpi0
> dev.cpu.0.freq: -1
> dev.cpu.0.freq_levels: 9999/99999 9999/99999 8749/87499 7655/76561 7499/74999 6561/65624 6249/62499 5624/56249 5468/54686 4999/49999 4686/46874 4374/43749 3905/39061 3749/37499 3280/32812 3124/31249 2812/28124 2499/24999 2343/23437 2187/21874 1874/18749 1562/15624 1405/14062 1249/12499 1093/10937 937/9374 781/7812 624/6249 468/4687 312/3124 156/1562

Could you send acpidump -t -d output?

-- 
Nate