[Bug 422858] Re: Atom N280 frequency scaling not supported

Colin King colin.king at ubuntu.com
Mon Nov 2 12:56:53 UTC 2009


@Runar,

>Why is it that the kernel uses the BIOS here anyway? Determination of the CPU speed shouldn't depend on such 
>a crappy architecture, at least from my perspective.

Unfortunately to pick up all the power management goodness, the information has to be defined somewhere - this is what ACPI is for.  Either you disable ACPI and lose a lot of functionality, or you follow what ACPI defines to get all the power mangement goodness and unfortunately sometimes pick up bugs in the ACPI tables.  You buy a PC, you get ACPI. Hewlett-Packard, 
Intel, Microsoft, Phoenix Technologies and Toshiba for ACPI :-)

-- 
Atom N280 frequency scaling not supported
https://bugs.launchpad.net/bugs/422858
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