Seems that with the new kernel the disk stays awake and never even tries to go standby:
http://codepad.org/lIRqEBOW Edit: i did stop this script for a while, and the disk went to sleep (not standby, but i think suspend or more. The drive was not only spun down, but the light was blinking, so some deep sleep). then i restarted it, and hdparm woke it up! (after which it reported active/idle). I never experienced, before, that hdparm -C wakes up a drive. Can it be that the subsystem now deep-probes the drive in some way? Next (and possibly last) test i could do is trying 4.14 on a 14.04, assuming it will work. To check if the kernel breaks the expected behavior that is currently provided by 14.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733068 Title: Unmounted USB drives wake up on 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1733068/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
