Confirming this on a 2nd machine : Asus EeePC 1005PE. With numbers. With the machine clean-booted on precise Beta 1, latest kernel update as of now, running on battery, user logged in, no network connection, wi-fi disabled, no apps running except for an open terminal window.
Leaving the machine alone in this state for 20 minutes and observing the HD SMART values before and after, I get during 20 minutes : - (4) Start_Stop_Count : +19 - (193) Load_Cycle_Count: +29 That's much too much ! On this machine which has always been running 100% Ubuntu and over 2190 hours of HD runtime, I got 3288 "Start_Stop_Count", that makes on average 1.5 HD Start/Stop per HOUR. With precise I get about 1 Start/Stop a minute doing nothing - which is 60 times more ! On my other machine for which I 1st reported the bug (network up and some apps running) I would say it's 3-4 Start/Stop per minute ! IMHO this is a show stopper, with such disk "power saving" parameters, this will kill HDs in a couple of months. (I can also confirm that this crazyness ceases as soon as AC power is connected) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/952556 Title: [Precise] [Hardware-killer] HD restarts every few seconds To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/952556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
