Comment 5 for bug 427925

I can confirm this buug on my Acer timeline 3810T machine running with jaunty 64 bit.

Funny thing is, although i am unable to change the policy setting manually, powertop seems to be able to toggle that feature as it stops noticing me about this possible tweak. And i think but cannot proof, that i has a impact on power consumption.
Or may this probably be related to a fix i had to use when i was installing Jaunty to make my Hitachi 320 GB disk accept the AHCI feature - i just remember i had to switch off NCQ to stop the HD from producing sata lockups and system hangs.