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#1 2010-01-14 05:26:35

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Cpu frequency scaling! help

Hey there, been using arch on my Desktop for quite a while, just installed it on my netbook and I can't seem to get a module loaded up for scaling.

I know I need the Powernow-K8 module, i was using a custom compiled kernel when I had Ubuntu running on it, got it from a person that had the same netbook.

Also 3d acceleration is terrible compared to when I was running ubuntu 9.10.  specs are

AMD Athlon™ 64 single-core processor L110
AMD M690E Chipset
ATI Radeon™ X1270 Graphics

The Netbook gets 3 hours or so on the out of the box install of Vista it came with, only getting an hour or so on Arch and the fan is running constantly.

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#2 2010-01-14 06:14:21

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

Have you checked here: http://wiki.archlinux.org/index.php/Laptop
and if you use open source ati driver you will have no power management for video card.

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#3 2010-01-14 06:23:40

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

Yeah i tried loading modules and everything, but it keeps saying they don't exist.

Also it's impossible me to use anything but the opensource driver, I can't use the legacy catalyst with the version of xorg i have

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#4 2010-01-14 06:55:32

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

what does

ls /lib/modules/*/kernel/arch/*/kernel/cpu/cpufreq

say?

if you need powermanagement for videocard you can downgrade xorg to 1.6.x

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#5 2010-01-14 06:57:36

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

acpi-cpufreq.ko     longhaul.ko     powernow-k7.ko    speedstep-smi.ko
cpufreq-nforce2.ko  longrun.ko      powernow-k8.ko
e_powersaver.ko     p4-clockmod.ko  speedstep-ich.ko
gx-suspmod.ko       powernow-k6.ko  speedstep-lib.ko

Would you recommend downgrading xorg? it is a netbook, so anything to save me power will be well worth it if it doesn't break my system

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#6 2010-01-14 07:09:54

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

So what does

sudo modprobe powernow-k8

say?

you will get better battery time if you downgrade xorg and install catalyst. There are posts in this forum describing how.

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#7 2010-01-14 07:13:11

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

FATAL: Error inserting powernow_k8 (/lib/modules/2.6.32-ARCH/kernel/arch/x86/kernel/cpu/cpufreq/powernow-k8.ko): No such device

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#8 2010-01-14 07:16:02

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

surfed wrote:

So what does

sudo modprobe powernow-k8

say?

you will get better battery time if you downgrade xorg and install catalyst. There are posts in this forum describing how.

For the moment I will focus on the scaling. Plus the opensource drivers are getting better all the time and will probably get powermanagement soon

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#9 2010-01-14 07:20:55

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

looks like your cpu has no powernow (googled and saw this on a forum) so you might be out of luck but you should try and confirm this.
see
netbooktech.com
for more info

Last edited by surfed (2010-01-14 07:23:14)

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#10 2010-01-14 07:27:07

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

http://ubuntuforums.org/showthread.php?t=1253365

I used this modification shown in this thread and it worked fine

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#11 2010-01-14 07:35:28

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

Ok, I see from those links that there is a patch for kernel26-git so it seems like you will be diving into compiling and patching kernel26-git. Its in aur and you will need to modify the pkgbuild to include your patch.

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#12 2010-01-14 07:37:00

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

Would I be able to do that with Yaourt?

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#13 2010-01-14 07:40:23

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

yep.

yaourt kernel26-git

but you will need to manually add your patch

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#14 2010-01-14 07:43:16

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

K this goes beyond my expertise, how would I go about adding the patch and where would I get it from (sorry for the stupid questions)

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#15 2010-01-14 07:54:47

surfed
Member
From: Vienna Austria
Registered: 2009-10-30
Posts: 86

Re: Cpu frequency scaling! help

never done this myself, but i would first get the patch from here
http://forum.notebookreview.com/showpos … tcount=217

you will have to do some searching and asking to go from there..

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#16 2010-01-18 21:02:26

GentleGiant
Member
Registered: 2010-01-13
Posts: 23

Re: Cpu frequency scaling! help

bump

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#17 2010-01-18 21:19:52

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: Cpu frequency scaling! help

Duplicate thread: http://bbs.archlinux.org/viewtopic.php?id=88708

Please do not cross-post.

Also, bumping is not permitted.

See here for full details.

Closed.

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