cpufreq info in KDE wiki entry

panosk · 2010-10-01 11:06:29

Hi all

In the powersaving section in the KDE wiki entry, it states that

Warning:  Using Cpufreq in order to handle your CPU power schemes, that means, controlling it through software, IS NOT suggested for use since modern CPUs are capable of powersaving through their BIOSes.

If I get it right, it is suggested that it is better to not use cpufreq at all. The problem is that, without installing and configuring cpufreq, cpu scaling does not work (tested both in my laptop with intel core 2 duo and in my desktop pc with AMD Phenom II X4 955). Cpu scaling is enabled in BIOS in both machines. So, is this statement valid or am I missing sth?

Last edited by panosk (2010-10-01 11:07:10)

stqn · 2010-10-01 18:32:59

As far as I know, this is complete BS. The kernel/cpufreq control the cpu. If cpufreq is not working, your cpu won't change frequency and be stuck at highest (or sometimes lowest) frequency and voltage.

Moreover, "modern" doesn't mean anything in this context... What CPUs are we talking about? So it's hard to guess what this extract is supposed to mean exactly.

Then I didn't know CPUs had BIOSes. I thought motherboards had BIOSes.

PS: I'm not using KDE and I think it's a really bad piece of software, so I'm not going to study and fix this wiki entry .

flamelab · 2010-10-01 19:06:30

The wiki entry is based on the link in the same section. If someone has something better to contribute, please do.

"BS" and such things are trolling. That means fix or don't troll about it.

Last edited by flamelab (2010-10-01 19:18:40)

panosk · 2010-10-01 19:24:01

@stqn: Man, you are angry...take it easy Apparently, we are talking about the cpu scaling option in the motherboard BIOS. Someone has spent time to make/edit the wiki entry, so a simple grammar mistake should not spoil him. Even if you don't like or use KDE, you could still correct this sentence since you consider it so important to worth a mention. Anyways, thanks for the feedback. I was struggling to achieve cpu scaling without cpufreq.

@flamelab: I have tried a few schemes with cpufreq and the powersaving feature in solid. I need to test a few more things and then I could probably provide some info in the wiki entry's relative section.

flamelab · 2010-10-01 19:55:45

Thanks panosk. Ι was offended by stqn, since I have written most of KDE wiki (and update it on each version), and that part was really tricky, due to Powerdevil changes. I 'm not american/english, so the grammatical mistakes ought to be forgiven, I suppose.

If you can update it/fix it/whatever, please do, it would be the best for the wiki.

P.S: Καλησπέρες

Last edited by flamelab (2010-10-01 20:08:45)

Arch Linux

#1 2010-10-01 11:06:29

cpufreq info in KDE wiki entry

#2 2010-10-01 18:32:59

Re: cpufreq info in KDE wiki entry

#3 2010-10-01 19:06:30

Re: cpufreq info in KDE wiki entry

#4 2010-10-01 19:24:01

Re: cpufreq info in KDE wiki entry

#5 2010-10-01 19:55:45

Re: cpufreq info in KDE wiki entry

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