Re: speedstep-centrino: ENODEV

[Jiri Slaby]

Pallipadi, Venkatesh wrote:
> How about acpi-cpufreq? Does it work?

How did you mean this, speedstep-centrino (which can also control voltage) is 
one of acpi-cpufreq drivers, isn't it?

> Thanks,
> Venki 
>
> > -----Original Message-----
> > From: linux-kernel-owner@xxxxxxxxxxxxxxx 
> > [mailto:linux-kernel-owner@xxxxxxxxxxxxxxx] On Behalf Of Jiri Slaby
> > Sent: Wednesday, October 18, 2006 12:01 PM
> > To: Linux kernel mailing list
> > Cc: linux-acpi@xxxxxxxxxxxxxxx
> > 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?

regards,
--
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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