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

[David Timms]

Arjan van de Ven wrote:
> Hi,
> 
> some of you already know that I've been working on getting Linux (and
> Fedora) to be a lot better about power usage on laptops by avoiding
> spurious wakeups and context switches and such (look at the "wakeup" bug
> in fedora bugzilla ;).
...
Would this tool help one in tracing the cause of disk accesses in an 
otherwise inactive/idle notebook. It seems to be about every 3 seconds 
or so that the hard disk LED lights. This must make it impossible for 
the hard drive to get powered down - and save power.

DaveT.