On 27.06.2008 22:43, Till Maas wrote:
On Thu June 26 2008, Fulko Hew wrote:
> - after suspend/resume - make sure DISK power saving settings don't
> change
>
> ie. on F8, I have to do:
>
> hdparm -B 255 /dev/sda
>
> to eliminate the current 'click of ultimate demise' problem
> with overly aggressive disk power management
> (Unfortunately, I don't know where I can set-it/script-it
> to run after a resume.)
This should not happen with F9, because there pm-utils restores the hd apm
settings after thaw/resume, here is a way described, how you can script it in
F8:
https://bugzilla.redhat.com/show_bug.cgi?id=382061
Yeah, that works; thx for your work Till.
While at it: On my Dell Latitude D630 I still get the 'click of ultimate
demise' problem in F9 if I forget to run "hdparm -B 255 /dev/sda"
*once* after each proper boot. It seems the BIOS is the culprit as the
default Power Management level for the hard disk seems to be 128; due to
that afaics the heads are parked (and unparked) often if the machine is
mostly idle for a few seconds. If seen this on other laptops as well.
Should we fix this properly in Fedora as the defaults for at least a few
(maybe more) laptops are odd?
CU
knurd