Re: CPU frequency scaling on G4 systems
On Mon, 25 Sep 2006 14:19:03 +0100, Roger Leigh wrote:
> Hi folks,
> With current 2.6.17 and 2.8.16 Debian kernels, the following cpufreq
> modules are available:
> $ find /lib/modules/$(uname -r) -name 'cpufreq*'
> However, loading any or all of these modules does not enable frequency
> scaling. You don't get anything under, e.g.
> or under /proc.
> What else is needed to get CPU frequency scaling to work? On other
> platforms, there are additional modules under kernel/arch/<arch>, but this
> is not the case for powerpc.
> The system in question is a Mac Mini (7447A).
Those are only scaling governors. You also need a scaling driver. Easiest
way to find out which driver you need is to boot an Ubuntu LiveCD and
issue an lsmod, at least IMHO.