On 05/18/2018 10:07 PM, Rainer Dorsch wrote:
> Package: hdparm
> Version: 9.56+ds-1
> Followup-For: Bug #758988
>
> Dear Maintainer,
>
> I see that behavior also in buster.
>
> What I understand is that
>
> /usr/lib/pm-utils/power.d/95hdparm-apm resume
>
> gets called during resume.
>
> To make it work for me, I had to comment these two if conditions
>
> # if [ -b $dev ] && hdparm_try_apm $dev ; then
>
>
> # Check for APM support; discard errors since not all
>
>
> # drives support HDIO_GET_IDENTITY (-i).
>
>
> # if hdparm -i $dev 2> /dev/null | grep -q
> 'AdvancedPM=yes'
>
> # then
>
> in resume_hdparm_spindown().
>
> For reference the output of
>
> root@b370:~# hdparm -i /dev/sdb
>
> /dev/sdb:
>
> Model=SAMSUNG HD501LJ, FwRev=CR100-12, SerialNo=S0MUJ1FPB79563
> Config={ Fixed }
> RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
> BuffType=DualPortCache, BuffSize=16384kB, MaxMultSect=16, MultSect=off
> CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
> IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
> PIO modes: pio0 pio1 pio2 pio3 pio4
> DMA modes: mdma0 mdma1 mdma2
> UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
> AdvancedPM=no WriteCache=enabled
> Drive conforms to: unknown: ATA/ATAPI-3,4,5,6,7
>
> * signifies the current active mode
Thanks for reporting.
The only solution I currently see is to add an option to hdparm.conf to
allow forcibly set spindown time regardless APM support.
/usr/lib/pm-utils/power.d/95hdparm-apm need to be modified to check for
this option in resume_hdparm_spindown().
