I have an at least similar issue on 12.10 quantal:
I want to spin down my external USB drive /dev/sdc as fast as possible:
in /etc/hdparm.conf:
/dev/sdc {
spindown_time = 1
}
that works, although I get
$ sudo hdparm -C /dev/sdc
/dev/sdc:
SG_IO: bad/missing sense data, sb[]: f0 00 01 00 50 40 00 0a 00 00 00 00 00 1d
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
drive state is: unknown
but after resume from suspend, it doesn't work anymore.
my workaround is
/etc/pm/sleep.d/20-hdparm
#!/bin/bash
case "$1" in
thaw|resume)
hdparm -S 1 /dev/sdc
;;
esac
and that works, anyway, spindown settings shouldn't get lost on
suspend/resume in the first place.
So what is most reasonable?
* Reopen this bug?
* Deal with that issue in the similar and open bug
https://bugs.launchpad.net/ubuntu/+source/hdparm/+bug/199094 ?
* Open a new bug?
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https://bugs.launchpad.net/bugs/738757
Title:
spindown settings lost on pm-suspend indirectly affects powernap power
savings
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