If that helps, the spinning seems less aggressive while on iGPU mode: I have currently AMD Catalyst 12.4 installed on my machine
dd@dd01:~$ sudo aticonfig --px-list-active-gpu PowerXpress: Integrated GPU is active (Power-Saving mode) The spin becomes more frequent when on the dedicated graphics card (dGPU) -- 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/hdparm/+bug/952556/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs