Public bug reported:
Binary package hint: pm-utils
When the script /usr/lib/pm-utils/power.d/hardrive is run and the system
contains an SSD not a HDD and error can occur.
On SSD systems we should not be passing -M to hdparm as the acoustic
management setting is not valid.
On my SSD calling hdparm with -M causes the ATA drive to reset with the
following error in kern.log
kernel: [ 19.010138] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action
0x6 frozen
kernel: [ 19.010151] ata1.00: failed command: SET FEATURES
kernel: [ 19.010160] ata1.00: cmd ef/c2:00:00:00:00/00:00:00:00:00/40 tag 0
kernel: [ 19.010161] res 40/00:fe:00:00:00/00:00:00:00:00/40 Emask
0x4 (timeout)
kernel: [ 19.010173] ata1.00: status: { DRDY }
kernel: [ 19.010181] ata1: hard resetting link
** Affects: pm-utils (Ubuntu)
Importance: Undecided
Status: New
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Setting acoustic management on SSD fails
https://bugs.launchpad.net/bugs/639745
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