I found it ! I did "hdparm -B 127 -S 1 /dev/sd?" and then "hdparm -B 127 -S 20 /dev/sd?", and now the spindown via "hdparm -Y" is working !! I don't understand why, but it solved my problem.
-- 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
