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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 07-18-2004, 10:25 AM   #1
Registered: Jun 2003
Distribution: Arch
Posts: 315

Rep: Reputation: 30
Power saving?

I have ACPI working problem free on my T41p laptop, but I would like to go beyond mere status information and have a functioning power saving setup.

I know the processor is capable of clocking way down, and I have freq control enabled in the kernel as is necessary. Is there a daemon I can run that can dynamically clock up/down the laptop to fit usage?

Is there a utility that can spin down the HDD when it is not being used? I seem to remember reading that reiser is incapable of spinning down while mounted rw, but I'm running XFS - an fs for which I have no solid information.

Anybody else figure out how to get power saving features to work?
Old 07-18-2004, 10:59 AM   #2
Registered: Jan 2003
Location: Dayton, Ohio
Distribution: Slackware 10.2
Posts: 116

Rep: Reputation: 15
Power saving demons

The two power saving demons I know of are cpufred, and powernowd. I don't know anything else about them besides their names. The information was found on the IBM Thinkpad mailing list (, which you might want to join since you have a thinkpad. Good luck.
Old 07-18-2004, 10:38 PM   #3
Registered: Jun 2003
Distribution: Arch
Posts: 315

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Rep: Reputation: 30
OK, I have cpufreqd running just fine now, and that is a big help on the battery.

Is there a way to spin down the HDD automatically like in Windows?


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