https://bugzilla.kernel.org/show_bug.cgi?id=205107 --- Comment #15 from Hélder (helder.armando@xxxxxxxxxxx) --- Let me fix some of the information I have sent. I decided to retry these scenarios just to be certain. If I do leave the cable plugged in until the system is completely off (never unplugged) and (prior to shutdown): - unmount normally (via the file manager) ->> the problem is still present (disc doesn't spin down). - Use the script (which includes "udisksctl power-off") ->> the problem is not present most of the time, but the HDD is sometimes re-awoken by the system during shutdown, resulting in the same problem. PS: Under normal circumstances, I execute the script, unplug the HDD manually and then shut the system down as normal. PPS: Multiple messages were sent due to the networking problems forcing me to refresh the page until the reply is visibly sent. - Hélder -- You are receiving this mail because: You are watching the assignee of the bug.