This problem might be somehow related to KDE. The only reason I mention this is because I was able to previously (as of yesterday) do a hdparm -Y <dev> and have the device remain in sleep. This morning I installed kubuntu-desktop and upon a subsequent reboot, the disk spins up immediately.
In this instance, hdparm -S 1 <dev> does not result in anything other than the "setting standby to 1 (5 seconds)". I should note that I'm not actually using KDE while trying to issue said command(s) (I'm running the minimalist wm awesome, and only installed KDE for experimental purposes), and lsof | grep <dev> shows <dev> to have no open files. I am not saying KDE is in any way related to this, necessarily; but I do know that issuing the hdparm -Y command worked on the disk, as of yesterday. -- hdparm -Y does not work (as it did in 8.10) https://bugs.launchpad.net/bugs/374287 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
