PowerTOP tool released; time to fix the wasted laptop power on fedora?

Martin Sourada martin.sourada at seznam.cz
Sun May 13 21:11:32 UTC 2007

Martin Sourada wrote:
> Cool thing, just tried it on rawhide with the not-so-unexpected result 
> where the top is liferea and epiphany followed by usb, XOrg and eth0.... 
> But what I didn't expect was the power usage and count of wakeups:
> Wakeups-from-idle per second :  413.0
> Power usage (ACPI estimate) :   1.1 W (2.4 hours left)
> 1.1 W? That is really low IMO... Really, really interesting. Hope this 
> tool helps to improve linux powersaving capabilities in the future. Keep 
> the good work :-)
> Martin

I looked once more at the power usage: 1.1W... is it OK? Shouldn't there be 11W? 
I have quite ordinal laptop with Intel Celeron M 420, I don't think such low 
power usage is possible on this... Any idea? And well, I have the 1.1 version of 


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