Comment 16 for bug 952556

I first used my ears, that told me that the disk was spinning down then up etc... On one of my machines the disk is loud enough to be clearly noticeable.

Then I used "smartctl -A /dev/sda" to check the "(4) Start_Stop_Count" raw value over time, that's the HD's number of starts/stops in its lifetime. And that's increasing...

Checking disk's SMART attributes in Gnome Disk Utility shows the same results.

I just could check 2 of my laptops this morning : "laptop-mode-tools" is installed on neither of them.