Hi Kevin,
Many thanks for your assistance with this.
Your attempts to reproduce the issue, and your subsequent question made me realise I had neglected to provide some key information:
- In my scenario, the drive is used as a data drive only, it is not used as a boot drive; as such the outcome should be independent of whether the motherboard bios supports ATA passwords or not.
- The motherboard in my scenario is the Intel S1200V3RPL. Incidentally, the BIOS on this board doesn't seem to allow the ATA password to be set, but does prompt for the ATA password on a cold or warm boot if
a) the drive already has a password set, and
b) the drive is connected to a port on the motherboard.
- In my scenario however, the drive is connected to a port on an Intel RMS25JB080 controller, and configured in 'pass-through' mode (i.e. not RAID).
- The host os is Fedora 20.
After your tests, I repeated my scenario, but with the drive connected to a port on the motherboard, instead of the RMS25JB080 controller. Unfortunately, I get the same result as before: the drive is locked when waking from sleep, even though it was unlocked before initiating sleep. So, the behaviour I am observing would seem to be independent of the controller the drive is attached to, but is still different to the behaviour you observed with a different Intel board.
Since we are using the same drive, perhaps there is an issue with the S1200V3RPL board or BIOS? Or could it be an os (Fedora vs Ubuntu) issue?
Thanks
Alex.