linux-kernel - RE: speedstep-centrino: ENODEV

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Message-ID: <EB12A50964762B4D8111D55B764A8454C1A223@scsmsx413.amr.corp.intel.com>
Date:	Thu, 19 Oct 2006 07:00:07 -0700
From:	"Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com>
To:	"Jiri Slaby" <jirislaby@...il.com>,
	"Linux kernel mailing list" <linux-kernel@...r.kernel.org>
Cc:	<linux-acpi@...r.kernel.org>
Subject: RE: speedstep-centrino: ENODEV


How about acpi-cpufreq? Does it work?

Thanks,
Venki 

>-----Original Message-----
>From: linux-kernel-owner@...r.kernel.org 
>[mailto:linux-kernel-owner@...r.kernel.org] On Behalf Of Jiri Slaby
>Sent: Wednesday, October 18, 2006 12:01 PM
>To: Linux kernel mailing list
>Cc: linux-acpi@...r.kernel.org
>Subject: speedstep-centrino: ENODEV
>
>Hi!
>
>How is it possible to find out whether or not 
>speedstep-centrino is supported. I 
>have
>processor       : 0
>vendor_id       : GenuineIntel
>cpu family      : 6
>model           : 13
>model name      : Intel(R) Pentium(R) M processor 1.60GHz
>stepping        : 6
>cpu MHz         : 1600.149
>cache size      : 2048 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 mce cx8 apic sep mtrr 
>pge mca cmov pat 
>clflush dts acpi mmx fxsr sse sse2 ss tm pbe est tm2
>bogomips        : 3201.52
>
>processor, but speedstep-centrino returns ENODEV because of 
>lack of _PCT et al 
>entries in DSDT (http://www.fi.muni.cz/~xslaby/sklad/adump). 
>It is possible to 
>hard-code that values to speedstep-centrino as for banias cpus 
>or use corrected 
>DSDT that will contain _PCT, _PSS and _PPC, but where may I 
>obtain these values?
>
>This is Asus M6R notebook, some DSDT parts of this piece of HW 
>are really ugly 
>(problems with acpi some time ago).
>
>I may use p4-clockmod (and it points me to speedstep-centrino 
>module), but if I 
>am correct, it doesn't save battery life?
>
>thanks,
>-- 
>http://www.fi.muni.cz/~xslaby/            Jiri Slaby
>faculty of informatics, masaryk university, brno, cz
>e-mail: jirislaby gmail com, gpg pubkey fingerprint:
>B674 9967 0407 CE62 ACC8  22A0 32CC 55C3 39D4 7A7E
>-
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