Comment 74 for bug 59695

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Andrew Conkling (andrewski) wrote : A summary of the issue from an Ubuntu developer

Disclaimer: *I* am not said developer. I only link to his blog:
http://www.advogato.org/person/mjg59/diary/82.html

"...by default, we do not alter the hard drive power settings. In other words, the APM settings that your drive is using in Ubuntu are the ones that your BIOS programmed into it when the computer started. This is supported by the fact that people see this issue after resuming from suspend. We don't touch the hard drive settings at that point, so the only way it can occur is if your BIOS or drive default to this behaviour.

[...]

"There's certainly an argument that we should work around BIOSes, but in general our assumption has been that your hardware manufacturer has a better idea what your computer is capable of than we do. If a laptop manufacturer configures your drive to save power at the cost of life expectancy, then that's probably something you should ask your laptop manufacturer about."