RE: speedstep-centrino: ENODEV

From: Pallipadi, Venkatesh
Date: Thu Oct 19 2006 - 10:00:39 EST



How about acpi-cpufreq? Does it work?

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?
>
>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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