Subject: Re: atactl and disk spindown
To: Ken Hornstein <>
From: Wolfgang Rupprecht <>
List: current-users
Date: 05/05/1999 11:48:39
Ken Hornstein writes:
> Is it possible that your laptop BIOS
> is sending spindown messages to your hard drive when it "thinks" your
> machine is idle?  Does turning off power management in the BIOS help
> at all?

That was one of my fears too, that the bios was being a bit too

The sony 505tx's BIOS (phoenix) doesn't have a global "turn this bios
apm crap off" switch.  It only has individual "power manage the disk"
/ "don't power manage the disk" switches.  That switch along with
everthing but the auto-lcd-dimming on idle is off.

Now that I know is should work with a "0", let me see if there is a
difference between a virgin startup (with an uninitialized disk timer)
and one where I have run "atactl wd0 setidle 0".

Wolfgang Rupprecht    <>
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