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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).


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Old 01-11-2005, 07:40 AM   #1
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Registered: Oct 2004
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cpu freq. scaling problem

my laptop is IBM R40 pentium-M 1.3Ghz and suse 9.2 pro installed. today i found in info ceter that my cpu is working in a freq. of 598 Mhz. what happened?any one know how this problem can be fixed?
Old 01-12-2005, 12:00 PM   #2
Registered: Jul 2003
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sounds like speed step. it's a feature in mobile processors that keeps the cpu underclocked when the system is idle or not under a small load.
Old 01-13-2005, 05:09 PM   #3
Registered: Jun 2004
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To make the processor run at full speed (and waste the battery ) then you will need to use the klaptop applet in the panel, and change CPU throttling to 00% slowdown.
This is what works on my Thinkpad T22
Old 01-13-2005, 05:30 PM   #4
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Distribution: Distribution: RHEL 5 with Pieces of this and that. Kernel, KDE 3.5.8 and KDE 4.0 beta, Plu
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* Proccessor Throttling
Check an see what the following says:
cat /proc/acpi/processor/CPU0/throttling
cat /proc/acpi/processor/CPU0/info

This commands changes speed step cpu setting. 0 is top speed.
echo -n 5 > /proc/acpi/processor/CPU0/throttling

" Google the Linux way @ "
Old 04-25-2005, 07:24 AM   #5
Registered: Mar 2005
Distribution: Slackware 10.1
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That is exactly what I am trying to do now!
I am running an HP-Compaq nx9005 (Mobile Athlon 2400+), I had been using powersaved but a few days ago I decided to reinstall Slack. A few problems with that:

1) Powersave doesn't compile. It gives an error related to some cpufreq-thing, although I have everything needed in the kernel..
2) acpid doesn't start. It says:
acpid: can't open /proc/acpi/event: Device or resource busy
3) Anyways, I am planning to use KLaptop. It shows available speed levels (there are six), but won't let me change. The notebook is always running at 1800 MHz when I don't need that power.

Opening a new topic seemed unnecessary.


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