[issue754] cpufreq driver modules not loaded by default

Michael Prokop bts at bts.grml.org
Fri Oct 30 00:20:51 CET 2009


Michael Prokop <mika at grml.org> added the comment:

* Andras Korn <bts at bts.grml.org> [20091030 00:05]:

> grml64 2009.05 (and I believe also 32bit grml) fails to load the cpufreq driver
> module (in most cases powernow-k[78] or acpi-cpufreq), which results in a waste
> of electric power until the user does it by hand. (Setting the scheduler to
> ondemand manually may also be necessary; I've grown accustomed to doing it no
> matter what, so I'm not sure grml doesn't do it for me.)

> Would there be any harm in just trying to load all cpufreq drivers? Or at least
> the most common ones? (I'm not sure complex auto-detection is warranted if udev
> doesn't do it on its own.)

Grml has it's mechanisms to load the cpufreq drivers, but activates
it only if a laptop has been detected. Is your system a laptop?

Does running 'Start loadcpufreq' (corresponds with
'/etc/init.d/loadcpufreq start') address your issue?

regards,
-mika-

----------
messages: 2600, 2602
nosy: korn
priority: feature
status: chatting
title: cpufreq driver modules not loaded by default

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GRML issue tracker <bts at bts.grml.org>
<http://bts.grml.org/grml/issue754>
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