Ubuntu is NOT causing aggressive power management

Ubuntu is NOT causing aggressive power management settings!
The following things might instead cause aggressive power management settings :

    * your (laptop) harddrive firmware might have aggressive power management defaults (operating system independent)
    * your (laptop) BIOS might set your harddrive to use aggressive power management (operating system independent)
    * you might have enabled laptop-mode in /etc/default/acpi-support (disabled by default) which will set your harddrive to use aggressive power management