I have just discovered that cpufrequtils is masked, and it JUST happened because I have installed Gentoo multiple times recently and now I am told to use cpupower. As power saving most of the time comes along with performance loss or increased latency, it should only be enabled when running on batteries. Change the config file to fit your needs. Enable the Power Management Unit plug-in of cpufreqd. It will then signal or reload the appropriate services so they can use the new configuration file.
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Here is a list of processors that are supported by cpufreq kernel 2.
If not, why are things being broken in favor of cpupower, which I have read clings to systemd, which I am trying to escape in the Gentoo world? This makes sure it gengoo interfere with your policies.
Maybe your bios doesn’t fully recognize the model, because it’s responsible for providing the frequency state tables for acpi-cpufreq. Hi all, I’ve followed the power management guides on the Gentoo Wiki https: Hosting by Gossamer Threads Inc. Nevertheless modern processors consume much more energy than older ones and each laptop generation introduces more gento hungry for energy.
Please notice that this guide describes Power Management for laptops. Nearly ggentoo component can operate in different states – off, sleep, idle, active to name a few – consuming a different amount of energy. To get comfortable with the interface to the kernel, first do some manual speed modifications.
Copyright Gentoo Foundation, Inc. Tue Dec 02, 2: Be sure to read the documentation in laptop-mode. Manual CPU speed modifications. The first thing to do is to patch the kernel with the patches provided at http: Using a recent kernel gengoo make sure you’ll get the most out of it.
You can combine frequency scaling with ACPI throttling to get a lower minimum frequency. If the “last full capacity” differs significantly from the design capacity, your battery is cpugreq broken.
The Prerequisites chapter talks about some requirements that should be met before any of the following device individual sections will work. To make the switch between AC and battery convenient, create a runlevel battery that holds all the scripts starting and stopping Power Management. Portage uses it for compiling The cpufreqd application can offer a more granular approach on CPU frequency scaling.
If you have no idea about it, first try speedfreq:.
What am I ventoo wrong? The next sections assume a runlevel battery exists. There are different kernel sources in Portage sys-kernel. The last thing to check is that your new policies do a good job. What you can do as a user in such a situation: View unanswered posts View posts from last 24 hours. This means I can set the governor to ondemand or even boot with it but as soon as I try to change it to something else, the system freezes. If not, apm offers all that is needed.
It doesn’t, unlike cpufrequtils, run as a daemon.
Display posts from previous: As this guide has become rather gentko, here’s a short overview helping you to find your way through it. The default configuration offers a sample rule:
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