Comment 36 for bug 59695

Revision history for this message
Blue (vali-dragnuta) wrote : Re: default value in power.sh potentially kills laptop disks

I would rather suggest to modify /etc/apm/event.d/20hdparm and at line 32 instead of
APMD_SPINDOWN=18

put
APMD_SPINDOWN=180 # 15 minutes instead of 90 seconds.

You can also set /etc/hdparm.conf, but as long as the apmd service is activated the setting in /etc/hdparm.conf will be useless, so if you modify hdparm.conf please
don't forget to make sure that hdparm is executed at boot (use rcconf,update-rc.d or services admin for that) AND make sure that you either modify the APMD_SPINDOWN or disable the apmd service using the previously mentioned rc tools.
I had a longer discussion with Martin by email and he had apmd disabled - that's why his hdparm.conf setting was not overset.
Anyway, 90 seconds is insane as default value.
And I also want to reiterate that the same apm script incorrectly assumes a on-battery configuration when it can't actually figure out if we are running on ac power or on battery (the special case 255 returned by on_ac_power ).