Dan, does disabling CD drive polling help on your machine?
Do you see any improvement from sudo hal-disable-polling --device /dev/cdrom ? (Side effect: does not open Nautilus window for a CD when inserted, turn it back on by deleting the created file in /etc/hal/fdi/information/prefrences.fdi ) Make sure that you compare your system while no applications are running. On my system, the HD kept quiet once the heads were parked; only disc access lead to new parking and click. This is, by the way, a hint that powertop gave me. Maybe HAL or a bug in HAL is waking up the HD s often. -- High frequency of load/unload cycles on some hard disks may shorten lifetime https://bugs.launchpad.net/bugs/59695 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
