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    SubjectRe: e_powersaver driver considered DANGEROUS (was Re: Linux 2.6.30-rc8 [also: VIA Support])
    Hi!

    > > > Ah, but we are talking here of the *second* NetBook ever produced.
    > > > If one is to believe the dmidecode output - it is using the VIA demo board
    > > > BIOS.
    > > >
    > > > I bet the demo board BIOS is intended to demo the features of the product -
    > > > not the correctness or completeness of the ACPI support. ;)
    >
    > So I've just been told the VIA reference BIOS has full support for the
    > processor p-state support. I'd therefore suppose every production BIOS
    > contains that code, too. The kernel should never use a native driver such as
    > e_powersaver on any C7 or Nano system, but use the ACPI provided
    > tables/methods, which are intel compatible. A native driver would only be
    > needed on really old C3 systems.
    >
    > The e_powersaver.c driver neither respects the maximum/minimum frequency
    > constraints specified in the MSR's, nor does it take care of the inflection
    > ratio, parallax and other advanced stuff that C7 and Nano are doing in this
    > area.

    Uhuh, what is inflection ratio/parallax?

    I did play with cpufreq on intel/amd systems, and never heard about
    those...

    Pavel

    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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