Comment 66 for bug 422858

Revision history for this message
summerfk (tall184) wrote : Re: [Bug 422858] Re: Atom N280 frequency scaling not supported

Don't know. I have Acer.

--
Sent from my iPhone

On 22 Dec 2009, at 22:15, Geralt <email address hidden> wrote:

> Is Lenovo aware of this problem? I've seen some links here to topics
> in
> their forums, but no statement from Lenovo.
>
> --
> Atom N280 frequency scaling not supported
> https://bugs.launchpad.net/bugs/422858
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in “cpufreqd” package in Ubuntu: Confirmed
>
> Bug description:
> Seems like there's a few people out there with a common problem. I
> can't get my Ubuntu 9.04 to manage the frequency of the Atom N280
> CPU at 1,6 GHz on my Acer One D250 HD.
>
> A quick google with bing later I found that I could "sudo modprobe
> acpi_cpufreq" except this returns "FATAL: Module acpi_cpufreq not
> found". A "sudo dpkg-reconfigure gnome-applets" didn't cut it either.
>
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
> returns:
> 1333000 1066000 800000
>
> Which shouldn't be, as /proc/cpuinfo, as well as Windows 7, states
> it's a 1,66GHz:
> model name : Intel(R) Atom(TM) CPU N280 @ 1.66GHz
> stepping : 2
> cpu MHz : 1333.000
> power management:
>
> Though it seems the frequency is locked at 1,3GHz and that there's
> no power management involved.
>
> Other peoples struggles with this:
> http://ubuntuforums.org/showthread.php?t=1201352&highlight=n280
> http://ubuntuforums.org/archive/index.php/t-1209082.html
>
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